[Merged] STUDENTS: Windows 7 Pro $40
http://store.digitalriver.com/DRHM/serv ... A&Env=BASE
edit: If you see Office 2007 Ultimate, look for a link that says Additional Products, and Windows 7 Professional Upgrade will be an available option.
edit: Can you upgrade from 32bit Vista to 64bit Win7 Pro? http://forums.cnet.com/5208-19411_102-0 ... dID=348275 Thanks to Ravage for the link.