School....bought?
I'm surprised your schools aren't one the many now that have the MS Select program for their students.
I can go into studnet licensing, and pick up for free, upgrades to XP, Office XP, Office:mac, and about any other consumer grade package they have. For a small fee ($10) I even had them give me a copy of the Japanese version of Windows 2000. And these are the select versions, so no worries about product activation and what have you.
Check with the tech. deptartment of your school and see if you can get the same deal.