Today, APple unveiled some changes to its popular Mac Mini desktop lineup. The $599 USD configuration has been bumped up to include a 2.26GHz Intel Core 2 Duo processor, 2GB of 1066Mhz RAM, and a 160GB hard disk. The $799 USD model also gets some love with a boost up to a 2.56GHz Intel Core 2 Duo processor, 4GB of RAM, and a 320GB hard disk.

Apple has also expanded the Mac Mini line to include a new Mac Mini server sans an optical drive. Priced at $999 USD, the Mac Mini server includes two internal 500GB hard disks, a 2.53GHz Core 2 Duo processor, and 4GB of RAM. Mac OS X server comes preinstalled, and the model is compatible with Apple’s external SuperDrive, (the external optical drive previously intended solely for the MacBookAir).

All three models of Mac Mini are available now.