Ya the EDU deal is definatly worth taking advantage of.
I bought a powerbook with it, and now that I am not student I got my GF to let me buy the new 15" 1.25 with hers. They never ask for anything, its weird. I remember at the actual apple store they used to get your DL #.
Maybe they do check and if they find out it was you they chrage your card for the difference