I'm going to start using Fusion for Windows XP. How much space is ok for this? Is 15 Gb enough? I'm only gonna use it for a few programs...nothing major or "pro"... How can I back it up? I decided not to use it off a bootcamp partition because I'm not going to use it that much and I would never natively boot into it since I don't play games. I've read that TM is not a good option for this since it will copy the entire thing and eat up space....will Super Duper clone it? Do I need to assign a different partition for Fusion backup? Thanks!