Just bought a 2.53ghz 4g RAM MacBook Pro, just wondering what version of Windows 7 will give me the best performance (through boot camp). I might get the Ultimate edition but should I install the 32/64/86 edition? I'll be using it to run Windows program (obviously) and the occasional L4D2 or TF2 through Steam. I'd like to hear some of user experiences with various versions. Sorry if there are a bunch of topics on this already =) Thanks for ANY help!