Torchlight
A few days ago I had tried out the demo for Torchlight. It's a Diablo style kind of game that is rather fun. Found out today that it is on sale over at Steam fore $4.99. Hurray for cheap games! Originally it is only $19.99, which is still pretty cheap compared to most new release games on the market today.
I just created a Steam account and am waiting for the game to finish downloading. There is also a map editor, which will be fun to play with.
If you want to check it out, go to either the Torchlight website or buy it through Steam.