for software and pc stuff -
a good place is Provantage - you have to set up got purchase as a student but you get a good discount on just about any tech related item,
"academic" purchases, most companies now sell you regular versions just at cheap.
Too good to pass up those deals even for got to make purchases staff, faculty..
you'll also find a few software companies also sell direct
an example was a copy of Chief Architect 8 for less than $300.oo great deal my office got to make detailed drawings for some publications we produced