But if I were to do this today I like the i7 quadcore, big PSU, 8 to 16GB RAM, use a full vent style side cover (or none) then pick the highest GPU I can budget for from this list -> http://www.tomshardware.com/reviews/best-graphics-card-game-performance-radeon-hd-6670,2935.html
Given how well single cards work, I have stopped seeing dual cards.
i want to build a hardcore gaming rig so that i can throw anything at it and it runs flawlessly. the problem that im facing is that i have a tendency of going overboard on things and i think i might be doing that now. currently the only thing i have is my case which is a nzxt zero 2 (full tower). im thinking of using the 990x chip and an asus rampage mobo. perhaps 12gb of ram (not sure what kind), two 580gtx cards, and two 2gb 7200 wd hd's. i thought of using an ssd but i have no idea what kind to get. as for the mobos its a toss between the rampage III black edition and the rampage III formula. my cooling method will be to put four 120 fans on the side of the case where they have the openings for them and then two 80 fans on the top and bottom, the case already has two 120's on the back and one of the front. once i build this rig i really dont want to have to worry about upgrading it for a long time.
thanx for all the help in advance