Where would I be able to find a good Power Supply that has more than 500 Watts?
What exactly do you mean by "Where"?
All I can say is Antec would probably be the best option. (A little expensive.)
I Mean Where online could I find one. Thanks for the Help
What country are you in?
I am in USA.
I buy most of my pc related stuff from newegg.com, they've been great.
These would be some of power supplies I'd recommend.
What would be the best power supply to get for an nvidia geforce 8800 GTX Video Card?
What Would be the best power supply to support a duel nvidia geforce 8800 GTX video card?
http://www.newegg.com/Product/Product.asp?Item=N82E16817104025 (this PSU will handle lesser cards in sli but not two 8800 GTXs)
(this PSU is made by PC Power & Cooling the best PSU manufacture out there, and is certified for two 8800 GTXs)
http://www.pcpower.com/products/viewproduct.php?show=S75QB (if you would rather have it in black)
I like all these... My wallet has a lot less $ in it than most of you I guess