I am thinking about switching to xp64. Can I partition my sata drive under windows xp, backup files, movies, etc, and then access that partitioned drive once I install the 64 bit operation system? I have lots of stuff that I would like not to have to put on cd if possible. Should I just stick with xp? I have an Athalon 64 bit processor. I am skeptical to switch. Any advice would be greatly appreciated!