Originally Posted by Vashanime04
I Just wanted a rig that would be able to handle some pretty sweet games especially since the one im using currently is pretty much crap(Vaio Rb30). Im thinking of adding a bigger psu so i can crossfire the card without running into power issues. Also does anyone know if there is a real difference between Vista home Premium and Ultimate 64bit of course.
Thee really isn't any difference performance wise between Vista Ultimate and Home Premium. You'll do just fine using Home Premium.
The Corsair 750W PSU you selected is fine for a single 4870 X2 setup. But if you ever plan on running them in Crossfire, you're going to need at least a 1000W power supply as suggested by ATI.