Hello and thanks for taking the time out to read. I currently run Windows XP sp3 on Fusion 3.01 on my macbook unibody (before they called it pro...2.4 gz dual core..) with Snow Leopard. I have a friend who works with HP and said that he would be able to get me a Free and Legit copy of windows 7 ultimate if I wanted it, otherwise he had another friend who may be interested. I am in medical school and use windows mainly to rewatch my lectures because for some reason they can only be played back at faster speeds on windows (some kind of windows media player issue that flip4mac can't address, they play back regular speed but i need them faster) So my question is what is the easiest way to upgrade? I currently run XP off of a partition that I originally used for bootcamp before I had fusion. I don't really need any files that I have on that partition. Would it be easiest to reformat the hard drive and do a true clean install? I have heard that people have difficulties trying to upgrade, especially if they want to keep their files. Also would it be worth the x64 version? I could get either he said. Or would that just simply use too many system resources unnecessarily? I am not the greatest with this kind of stuff so any help is greatly appreciated. Thank you very much....