Checked out a few different places yesterday. Here's what I got:
Super NES:
Lethal Enforcers (cart only) - $2.99 at Goodwill
GBA e-reader:
Donkey Kong 3-e (new) - $2.99 at GameStop
Other:
Grand Theft Auto: San Andreas Brady Games strategy guide for Xbox/PC - $2.99 at Goodwill
I sold the GTA: SA guide to a friend for what I paid for it. He recently bought the Xbox version of the game and told me to keep an eye out for a guide for him. Lethal Enforcers is in great shape.