I just bought a new HD, a nice terebyte drive, and want to get my XP install off the Fat32 portion of my drive, and onto an XP partition on the new external. If I set aside a 50gb NTSF partition, can I just run something like CCC and transferring the Fat32 XP install? Or is it a bit more complicated than that? I'm also going to install Vista for dev work (and for fun). I'm thinking another 50gb should be enough to install Vista and make it happy. What do you guys think? Are the "space required" metrics pretty accurate for the vista install? I wouldn't have too much more on there, just VS'08 and a few other dev tools. Third question, I'm thinking of toying with W7. Since this will be for toying purposes, I don't really need a large chunk of extra space, just the bare minimum to run it. Anyone see any problems with using the specifications for W7 HD requirements? I'm itching to get this new drive formatted and partitioned!