Well, my "4th roommate" (mom threw him out, so he lives on our couch, and his 'rent' is cooking and buying lots of drinks

) told me he wanted a badass machine for around $3000 including monitor.
And before you all tell me I'm crazy for these specs, keep in mind he wants it to plays new games, but it's also for school, and being an engineering major, that means Softworks, AutoCAD, etc, so without further adieu, let me hear yalls suggestions for how to improve this:
Black TT Tsunami Case w/ window
Black PLEXTOR DVD Burner Model PX-716AL/SW
WD Caviar 16MB Cache 400GB 7200 RPM Serial ATA150 Hard Drive
Logitech MX 5000 Black USB IR Wireless KB/Mouse (mx1000 mouse)
OCZ Gold Series 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 667 Unbuffered Dual Channel RAM
OCZ PowerStream OCZ520ADJSLI ATX, BTX, SATA, P4 and EPS12V 520W Power Supply
2x Intel Xeon EM64T 3.0 Irwindale 800MHz FSB Socket 604 Processor Model w/ HSF [Irwindale's are the 2MB L2 cache chips]
Iwill DN800-SLI Dual Socket 603/604 Intel E7525 ATX Server Motherboard [yes...that's a Xeon board with SLI

]
Creative Sound Blaster X-Fi XtremeMusic Sound Card
BFG Tech Geforce 7800GT 256MB GDDR3 Video Card
monitor & speakers are TBD, but most likely a 19" LCD [Samsung?] and a logitech surround setup...both @ employee pricing from best buy