if u goin for intel proc and intel based chipset mobo, getting a AIT 3870 is a good choice, u can go crossfire anytime u want......

btw 3870 has a better cooler, that the advantage, no hassle of changing cooler compare to reference dcesign 8800GT, wise 8800GT is a better performer on average

if u can spent a bit more on PSU, get a mushkin modular u plan to do case modding, else Silverstone St500 (i dunno the model name) would do just fine as well.