Newegg has an interesting deal today: $60 for a new PowerColor HD 6950 graphics card. I'm not a huge fan of the 6xxx series, but the 6950/6970 had their strengths. They're great on Moo, and pretty good on Collatz and Milkyway (decent Double Precision GFLOPS). You'll be disappointed if you try to run Einstein, SETI or POEM on this card, but for $60 it would be a good card for project goals or to keep on hand for challenges.

http://www.newegg.com/Product/Produc...82E16814131682