OpenPro Computer-$999, €670, £507
-Ubuntu Linux 8.04 included
-No keyboard, mouse, or monitor included
-3.0GHz Intel Core 2 Duo E8400 Processor
-2GB of DDR2 800 memory
-nVidia GeForce 8600GT with 512MB of RAM
-20x DVD+/-RW SATA drive
-Gigabit Ethernet
-8 rear USB Ports
-7 channel Integrated Audio SPDIF and Optical Output
OpenServ 1100-$1599, €1025, £810
-CentOS 5.1 Linux preinstalled
-No monitor mouse or keyboard included
-Intel Xeon E5420 Harpertown 2.5GHz Quad-Core Processor
-4GB of fully-buffered DDR2 667 RAM
-1 750GB 7200RPM SATA drive
-Dual Gigabit LAN
-Integrated Graphics
-Up to 4 Hard Drives
OpenServ 2400-$1999, €1280, €1015
-CentOS 5.1 Linux preinstalled
-No monitor mouse or keyboard included
-Intel Xeon E5420 Harpertown 2.5GHz Quad-Core Processor
-4GB of fully-buffered DDR2 667 RAM
1 750GB 7200RPM SATA drive
-Dual Gigabit LAN
-Integrated Graphics
-Up to 6 Hard Drives
As you can plainly see, the Psystar OpenPro Computer has more power in most areas than the Mac Pro, and it is a full $1500 cheaper. If you want to get Mac OS X Leopard pre-installed on any of their computers, it will cost you $155; $25 more than the retail version.

Psystar's OpenPro Computer
Psystar
