The pay-what-you-want to whom-you-want bundle is back (http://www.humblebundle.com/
The latest bundle is called Frozenbyte Bundle including following:
Trine, Shadowgrounds: Survivor, and Shadowgrounds. Additionally, your Frozenbyte bundle includes a preorder for Splot and a prototype with source code for Jack Claw.
You decide how much you pay and to whom the money goes, so far they have raised over $1 million to charity alone, so it's a win-win situation, you get great games and help needing same time.
Remember that all games are DRM free, available for Linux, Mac and Windows and you can once bought, you can download the bundle for each platform, not just one you say its for. You'll be also helping smaller studios to stay in business and have a chance to show them that there is enough Linux users worth developing games for - on average it has been around 25% of payments have been contributed by people marking Linux as their OS. Let's keep that up!