Apparently, Microsoft is offering a special discount to college students for Windows 7. All you have to do is provide your college email (.edu) and you can pre-order either Home Premium or Professional for just $30!
Windows 7 US Online Store - Student Registration
If you want to pre-order Professional instead of Home Edition, simply click on the line where it states "Need to join your school's network or domain? Click Here"
Windows 7 US Online Store - Student Registration
If you want to pre-order Professional instead of Home Edition, simply click on the line where it states "Need to join your school's network or domain? Click Here"