Just bought a big pile of indie games on Steam for a dollar each. You guys should check out the sales they have going right now (different each day until the 29th).

And Yet It Moves
Doc Clock: The Toasted Sandwich of Time
Eufloria
Gish
Iron Grip: Warlord
Jolly Rover
Puzzle Agent
Recettear: An Item Shop's Tale
VVVVVV
World of Goo