Steam has some good games on sale! I picked up a copy of Oblivion for $8, and a game called
The Longest Journey for $2.50.
The Longest Journey is an adventure game where you're an art student living for cheap in the hovercraft future with nightmares about a fantasy realm. I've only played it for about half an hour, and I like it! I hope to review it after I finish a playthrough, but the sale only lasts until the 10th. It is rated M, so... not for kids.