Alright, right now I have a 40GB Internal HDD running Windows XP Pro x64 Edition and I bought it foolishly thinking it would be compatible with all or at least most of them. My questions are... A. Can I install Vista 32-Bit on my external 120GB HDD and have it dual boot? B. If I do it that way, can I access all my files that are on C: Drive from Vista? I GREATLY appreciate the help if I can get this to work. Only a month til Bioshock comes out and I would rather have it on PC than my 360.