-Edit: This card take up two PCI-Express slots? If it does then I'm getting the 8800GT because my motherboard only has one.
Would this PSU be able to run the 8800GTS? Everything else in my computer is basic so it wouldn't take much wattage. http://www.newegg.com/Product/Product.aspx?Item=N82E16817153049
-Also since I'm not exactly 'tech savvy'. What does Overclocking do?