Thanks for all of the posts everyone.
As far as Vista goes, I do love it and don't have any problems with it. My current system is running it just fine since the day it came out
Well, maybe to be safe, I'll just stick with the 32-bit version just to be sure that I don't have any problems with it and have headaches dealing with it.
Jesus Christ, that's a good point, maybe I will just stick with the 4 gigs for now and once there is a real need for it, I'll buy it then at probably a lot better price than I'd get it for now.