Steve Jackson Games and Atlas Games are having a 23% off sale until May 3rd. This is rare and also pretty excellent, since it includes physical goods and PDFs.
I (finally) picked up GURPS Ultra-Tech for under $20 and I'm eying some others. But here are some steals for you:
My books, for one, such as GURPS Martial Arts for $21.55, or GURPS Martial Arts: Technical Grappling or GURPS Martial Arts: Gladiators for $7.69.
A 12-month Pyramid subscription for $53.90 (that's just under $4.50 an issue.)
Dungeon Fantasy 1 and most of the DF line for around $6.15 each (actually they range from a low of $3.84 to $7.61)
GURPS Conan and its four solo adventures - all 3rd edition, but easily adaptable - for under $25 for the lot.
Or a bunch of Ars Magica and Feng Shui stuff from Atlas Games. Or even this oddity I spotted: Cthulhu 500. What the-?