why just buy OEM? I did for my build lol

Lol we have the same case and graphics card and brand of ram( not identical ram)! 4870 is a great card But when you get it make sure the newest driver is installed because the newest CCC suit( basically CCC and the driver in one)( catalyst control centre, gives you options to tweak for the graphics cards made by ATI) gives you a sliding bar were you can change the speed of the fan on the graphics card easily. The auto fan adjust is rubbish and so when im playing games i changed it from it's default 22%-25 fan speed to 35-40, makes it quite a bit cooler.