You don't really need a computer case if you're not worried about looks!
lol, look at this setup:
http://forums.vr-zone.com/showthread.php?t=105774

Here's a link to a benchmark article on the new DX10 8800 nVidia cards. Looks like the GT version might be the better deal...as they usually are over the GTS versions:
http://www.extremetech.com/article2/0,1 ... 794,00.asp