With iPhone 4 pre-order frenzy in full effect at Apple and AT&T stores (and even taking AT&T’s order network down)another new item has quietly had a refresh. Today, Apple released a new version of its compact Mac the Mac Mini with a host of improvements and enhancements.

The new Mac Mini is made out of a solid chunk of aluminum and comes in two flavors:

Regular:
2.4 GHz Intel Core 2 Duo
2 GB RAM
320 GB hard drive
$699

Server:
2.66 GHz Intel Core 2 Duo
4 GB RAM
Dual 500 GB hard drive
$999

Both models have been updated with NVIDIA GeForce 320M graphics, the same integrated GPU in the MacBook and MacBook Pro. They also sport a new HDMI port (finally) and the “Server” Mac Mini allows you the option to not have an optical drive in favor of an additional hard drive.

Apple has also made the Mini a bit easier to upgrade, at least in terms of adding more RAM. Instead of a completed procedure involving several kinds of tools and a trip to Home Depot, the new mac Mini has simple twist off panel on the bottom to allow for RAM upgrades. No word yet on if this makes it easier to upgrade the hard drive but since the new Mac Mini is available today, word on that should be coming shortly.

Macs are great, except for when you want to play video games on them. Instead, OSX users rejoice whenever new and exciting titles are announced for the platform, and today is no exception. Kotaku has officially confirmed that along with the Steam software, Left 4 Dead 2, Team Fortress 2, Counter-Strike, Portal, and the Half-Life series are coming to Mac.

“As we transition from entertainment as a product to entertainment as a service, customers and developers need open, high-quality Internet clients,” said Gabe Newell, President of Valve. “The Mac is a great platform for entertainment services.”

This announcement has been rumored for awhile, as Mac-specific graphics were discovered in the beta files for the new Steam service last month. Valve dropped some serious hints later, with the release of some images of Valve games integrated with some familiar Mac themes.

Even more exciting is the new feature Steam Play, which will allow anyone who purchases a game on Steam for PC to download and play it for Mac, and vice versa, with no extra charge. Valve also hopes to release titles for Mac on the same day as the PC versions. The first simultaneous release for PC and Mac on Steam will be Portal 2, which was announced earlier this month.