I'm considering buying parallels but am concerned about the licensing and activation issues with Windows 7. Currently I'm using an iMac with Mac OSX and am booting into Windows 7 via boot-camp. I'd like to simplify the process by using Parallels but don't know the proper way to uninstall Windows 7 so that in can be reactivated in Parallels. Has anyone already done this and what was your experience? Thanks.