I already have a dual boot setup with XP Pro and Windows 7 32bit. I have upgraded to 8G of RAM, and would like to add 64bit Windows 7 to my boot list prior to migrating my apps to the 64 bit OS. Is this possible, or do I need to use a separate physical drive?
You can triple boot if you choose, it is the same as dual boot except with a third partition.
once you have all 3 running go into Win 7 and choose which to boot from first. (if no selection made auto boot 7)