How is my custom computer rig looking?

i think you should go with a 750 W psu minimum to be safe.. a card like that is a total power hog, and a 3-core processor is pretty intense too. Im no computer whiz, but no one wants their new system to fizzle out, jolt the components and possibly fry a circuit. The card is great for the games if you don't mind the cost. your looking at an fps of 50+ on cod games. depending on what os youre getting, the ram is still in question, but i would recomend 8 gb for vista. ive seen no problems, and it gives me plenty of leeway. Have fun!