I'm going to be purchasing VMware Fusion in the next few days and was looking around for a cheap copy of XP or Vista. My wife is in grad school, so the first place I checked was her school's student discount software list. They list the following: Microsoft Windows XP Professional Upgrade (with SP2, 32 & 64 Editions) Microsoft Windows Vista Ultimate Upgrade 32 bit DVD Media Am I correct in assuming that, these being "upgrade" versions, they would be useless to me? And if so, where can I get my hands on XP/Vista relatively cheaply? I don't really care which version because I'm only going to be using Windows to test websites with IE.