This is mine -
Atrix Dual Rail 650W PSU
Asus P5N-E SLI Motherboard
Intel Core 2 Duo E6750 2.66GHZ CPU
2GB DDR2 667 Kingston Memory
Nvidia Geforce 8800GTS 320Mb graphics x 1
160Gb Hitachi IDE HDD
Windows Vista Ultimate
Mine runs everything I have thrown at it so far, so with that setup you should be OK, however, you have not mentioned sound, if you are going to use a surround sound system, you might consider this - Creative Soundblaster X-Fi Series Xtreme Gamer(�56), or this - Creative X-Fi Xtreme Gamer Fatal1ty Professional Series Soundcard (�85)