Do 3 vostros. Brand new with full warranty, no refurb stickers, and identical configs.
Outlet you would have to find 3 identical ones - best thinga bout the outlet is finding a 4gb/512mb one that you can upgrade. You're not doing this. You would have to find 3 8gb ones with the coupon, etc etc. Not to mention one guy might get bluetooth while 2 dont (not that anyone should complain about such a great gift).
If you can do 3x quantity, maybe get 3 vostros with 3 of the 1tb externals for $49 and sell those on craigslist for at least 30 profit each (you can probably get 50 a piece). Just something to consider.