The Corsair 550 will be fine. You'll be better off going with 6Gb of DDR3 1600 rather than 3Gb of DDR3 1866.
cool... thanx gt! and Pinscher!
New Question...
So which vid card?
my original choice GTX260/216
HD 4870
HD 4850 x2 (this card is only $50 more, and is number 3 on the list Graphics card Rankings - Computer Forums... the other's are tied at 7.