The new iMacs boast LED-backlit 21.5- and 27-inch widescreen displays in an edge-to-edge glass design and all aluminum enclosure. They’re available with Intel (INTC) Core 2 Duo processors starting at 3.06 GHz, and Core i5 and i7 quad-core processors for even better performance. The low-end model is priced at $1,199, the same as the past generation, but its high-end sibling is now $200 cheaper, at $1,999.

The new MacBook features an 13.3-inch LED backlit display, a multitouch trackpad, and a $999 price tag. Though still housed in white polycarbonate plastic, it features an updated unibody design borrowed from the MacBook Pro.

The successor to the Mighty Mouse, Magic Mouse, eliminates mechanical buttons, instead, employing the same multitouch surface found on the iPhone, iPod touch, and Mac notebook trackpads, allowing users to navigate their desktops with simple gesture commands.

Accompanying the Magic Mouse is a a new Apple Remote. It’s got a new design and is, predictably, housed in aluminum.

Finally, Apple (AAPL) also updated the Mac mini. While its design is largely identical to that of its predecessor, it offers far more storage. Starting at $599, the entry-level Mac mini features a faster 2.26 GHz Intel Core 2 Duo processor and 2GB of DDR3 1066 MHz memory, a 160GB hard drive, five USB 2.0 ports, FireWire 800, Nvidia GeForce 9400M integrated graphics and a SuperDrive.

There’s also a new $999 Mac mini that’s specially configured with a Mac OS X Snow Leopard Server. It’s outfitted with two 500GB hard drives for a total of 1TB of server storage.

Quite a refresh and one analysts are already crowing about. In a bulletin released after the announcement, Piper Jaffray’s Gene Munster said Apple’s new machines will undoubtedly improve the company’s prospects for the December quarter.

“We expect the new iMacs, and to a lesser degree the new Mac minis, to help the desktop category rebound in the Dec. quarter,” Munster wrote. “In other words, the headwind that existed in the Sept. quarter due to aging Mac desktops has now turned into a tailwind for Mac units in the Dec. quarter….Bottom Line: Street Mac numbers may also be conservative if positive trends continue coupled with new Macs in the quarter.”

According to new stats from NPD Group, Apple now claims 91 percent of the U.S. retail market for personal computers costing more than $1,000. Nine out of 10 dollars spent on such machines in June went to Cupertino.

Now, granted, Cupertino only sells three Macs priced below $1,000 (the 13-inch MacBook and both versions of the Mac Mini), and Apple’s (AAPL) rivals’ offerings typically price out in the $690 -to-$703 range. Still, that 91 percent metric is impressive.

As Joe Wilcox over at Betanews puts it, “A (higher pricing) doesn’t necessarily lead to B (greater sales). All major Windows OEMs sell PCs in the premium category, too. Apple’s charging more isn’t necessarily recipe for people paying more for Macs, or their capturing big revenue share.”

That said, as NPD analyst Stephen Baker points out, Windows product average selling prices have been falling pretty rapidly over time, especially at retail, so it was inevitable that Apple’s share of the high-end market would rise, since the company hasn’t really altered its pricing philosophy.

This morning Apple (AAPL) refreshed its desktop line, announcing a new Nehalem-based Mac Pro, a more robust Mac mini and four new iMacs, among them, three with 24-inch screens. All three lines boast fundamental enhancements, but also more affordable prices–a feature Apple touted in its marketing materials the way it would a new technology. Consider this pull quote from Apple COO Tim Cook: “Our flagship 24-inch iMac with twice the memory and twice the storage is now available for just $1,499. The Mac mini is not only our most affordable Mac, it’s also the world’s most energy efficient desktop computer.” And this one from Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing: “The new Mac Pro is a significant upgrade and starts at $300 less than before.”

An interesting change from Apple’s standard marketing language, which typically holds its new machines up as “the most incredible desktop computer we’ve ever made” or “our fastest, biggest and brightest” or “the workstation Mac users have been dreaming about.”

These days, Apple’s new Macs are not simply faster and shinier, they’re a bargain as well. “Insanely great!” has become “insanely affordable!” Anyway, on to the specs.

The new Mac Pro is priced at $2,499 for the quad-core version and at $3,299 for the eight-core version, with Nehalem Xeon processors running at 2.93GHz. All feature an updated system architecture that Apple says delivers twice the performance of the previous model.

The new iMac line starts with the 20-inch iMac for $1,199 with a 2.66GHz Intel Core 2 Duo processor, 2GB of 1066 MHz DDR3 memory, a 320GB Serial ATA hard drive and Nvidia GeForce 9400M integrated graphics. Its 24-inch brethren features a 1920-by-1200-pixel widescreen display that offers 30 percent more screen real estate than the 20-inch model. It offers up to a 3.06GHz Intel Core 2 Duo processor and starts at $1,499–the same price as the previous generation 20-inch model.

The new Mac Mini has been outfitted with the same Nvidia GeForce 9400M integrated graphics as Apple’s new MacBooks, something the company says will improve its graphics performance as much as fivefold. Available in two models that start at $599, the mini features a 2GHz Intel Core 2 Duo processor, up to 4GB of DDR3 1066MHz memory, up to 320GB Serial ATA hard drive, five (!) USB 2.0 ports, FireWire 800 and a SuperDrive.

Also receiving a refresh today: Apple’s Time Capsule and AirPort Extreme, which now offer a “guest networking” feature that allows users to create a separate Wi-Fi network just for their friends and supports for simultaneous dual-band Wi-Fi. “For maximum range and compatibility, Time Capsule works simultaneously on both the 2.4GHz and 5GHz bands, allowing all the devices on the network to use the most efficient band automatically,” Apple explains. “And Time Capsule uses the latest 802.11n wireless technology so you can enjoy up to five times the performance and up to twice the range of 802.11g wireless networks.”

UPDATE: Hardmac is now claiming these new machines could be released as soon as tomorrow.

PREVIOUSLY:

• A Post-Macworld Apple Event? History Would Seem to Suggest So

In this environment where nobody is buying anything and you come out with a kick-ass product, you might get a lot of wows and woos, but that does not convert into sales. So that’s a wasted effort.”

– Global Equities Research analyst Trip Chowdhry says Apple may not innovate its way through this particular downturn.

Mac unit sales were down six percent compared with last January, according to Munster. Based on that, the analyst expects Apple (AAPL) will sell between 2 million and 2.2 million Macs during its second quarter, compared to 2.3 million Macs sold in Q2 of 2008. Also reportedly on the decline: iPod sales. Munster says January numbers for the iconic device were down 14 percent year-over-year.

It seems, then, that Apple CEO Steve Jobs may have to withhold his oft-recycled “best quarter ever” pronouncement come March. That said, Munster expects Apple to meet consensus expectations for the quarter–so it’s not all bad news. “We believe this data will be perceived as a neutral or a slight positive given the uncertainty surrounding the Mar-08 quarter,” Munster wrote. “Given concerns regarding iPod  weakness, we believe the segment’s in-line performance relative to  Street expectations is a positive.”

Interesting data points for Apple watchers, although by no means definitive ones. Munster’s report is, after all, based on a single month of data and doesn’t account for wild cards like the announcement of revisions to the iMac and/or Mac Mini lines–both of which have been expected for some time.

The refresh may happen yet, however. Apple (AAPL) has on many occasions uncrated new products on the heels of Macworld. In February of 2008, the company announced new iPhone & iPod touch models. In February of 2006 it debuted the Intel Mac mini and iPod Hi-Fi. In January 2005 it uncrated new PowerBooks and a month later, it announced a new iPod mini and an update to iPod photo.

Clearly there’s quite a precedent for post-Macworld announcements, and in all likelihood this year will see a few as well. Certainly, an Apple desktop event later this month or in early February would be an elegant way for the company to dovetail the official release of iLife ’09 with some new desktop hardware, celebrate the 25th anniversary of the Macintosh and prove once and for all that it doesn’t need Macworld to publicize new product releases.