If you want a complete set of Office without breaking your bank account and you are a current student with a valid .edu e-mail address, you may really want to check this out:
http://www.microsoft.com/student/discounts/theultimatesteal-us/default.aspx
Cheers!

http://www.microsoft.com/student/discounts/theultimatesteal-us/default.aspx
Cheers!