I am a longtime Mac user and about to upgrade my G4 tower to a 24" iMac C2D. I don't play games and I don't have any use for Windows at this point in time. As I understand it you have to partition for Boot Camp, so this is something you need to do on a fresh machine (unless you really want to go through the trouble of getting Boot Camp to work on an external which I've read can be done), so if I want to be able to use Windows at any point I have to plan for it now, otherwise I'll be reinstalling all my apps and backing up my data first. (At any rate I will be wiping and doing a fresh install when I get it to eliminate all the extra languages and other stuff I don't need to minimize the OS.) 1. Am I right that I can't just create a partition with Boot Camp later or could I? 2. At whatever point I do use Boot Camp, is 10GB a safe bet for Windows? 3. If I really am not going to be gaming, if and when I need Windows apps, is Parallels my best bet?