I wanna get the evga 8800gts 640mb but i got 2 quick questions. i only have a Pentium D 820 over clocked to 3.2 with 1 gig of ram so how would it run compared to my 6600 i have rite now. also im wondering since the south bridge is rite below the pcie slot towards the end of it so would the 8800gts clear it. also whats a good psu thats not to expensive to run it good and maybe add another in like October when birthday time comes around.