As the topic says, i'm a bit unsure for what to buy. What im currently looking at is the P5Q Deluxe or the P5Q-E. I plan on OC'ing it a bit so i want the best card for that option at an acceptable price of course. The specs i want to use on this motherboard are : Intel Core 2 Quad Q9550 2.83GHz 1333Mhz ATI HD4780 1GB Mushkin DDR2 4 GB extreme Performance XP2-8000 2x2048MB 1000MHz. (18.104.22.168) +3 hardrives and a dvdrom And i'm wondering if a 650w power supply will be sufficient for this? or maybe i should go to 750? I'm a bit unsure about the ram as well. Anyone that have any better choice on what i should get? Thanks for any answers in advance and sorry for my bad english.