Lulu.com has a 25% off your entire order (save up to $100) today through May 31, 2011. Just use the code CYBERMAY305 at check-out.
And if you’re looking for something to purchase at Lulu, and you’re an old school Dungeons and Dragons gamer, may I suggest the megadungeon (adventure setting) Stonehell Dungeon or the excellent Fight On! magazines or any of the D&D products by John Stater?
(Please note: I have no affiliation with any of these products, I’m just a fan of all of them.)