Not that I am immediately interested, but I was wondering whether to install Windows just as a test/fallback partition in order to use my licensed copy of Parallels. In this regard, it's just impossible to find a full install version of Windows in tech stores, which normally sell only the insufficient and extremely overpriced "upgrade" license for Windows 7 for USD 100 (at the very least). So my simple question is: where to get a cheaper, FULL licensed copy of Windows (XP, Vista or 7) to install on top of Parallels? Only on eBay (where it's damn hard to see which license is what") or is there anywhere to look for? Any legal download sources? Thanks!