I played Quake 4, Crysis, and CoD 4 on some pretty mean computers during CES! I especially liked using the HP Blackbird 002 PC, which all I can says WICKED!
Also played Q4 and CoD4 on an Intel QX9650, EVGA Nforce 780I 775 mobo, Corsair 2x2GB Twin2x4096, evga GF 8800 ultra (786MB PCI-E 3 way SLI), dual NZXT 800 watt PSus, NZXT CS831 case, with an Asetek 120MM watercooler.
And, of course, each one had at least a 30" screen that also rocked pretty hard.
BUCK BUCK, can you loan me ~$5,600 for one of these systems?

