This is just a heads up as I'm not sure how many of you here use Steam or how often you check it (I know I don't pay much attention to the spam from it). Basically Steam is an online market place for buying digital download copies of games. Chances are if you own Half Life 2 or Portal you have Steam on your machine.
Anyway, Steam are having some crazy Christmas deals at the moment. Some games are going for as much a 92% off. It's limited time, and the deals change each day. Maybe you can find something you've been meaning to play at a cheap price, or even as a gift.
BT