I'm with Vista on this one. Yes right now there "appears" to be no benift in Vista which I can understand, but it will be future titles in gaming where Vista's memory managment and multi threading capabilities will leave XP dead in the water. And re: 64bit v 32bit, 32 bit is fine for the moment but there will be a point where the 4GB limit will no longer do. A 64bit OS can access 16 Terabytes of RAM, yes terabytes.