It doesn't get any better than this. Buy some great Indie games and support two charities at the same time.
The Humble Bundle #6 is now available and features Dustforce, Rochard, Shatter, S.P.A.Z., Torchlight, Vessel and all of their soundtracks. Not only that but you get Windows, Mac and Linux versions of the games all completely DRM free! Pay more than $1 and you will also get a key for these games on steam.
It is such a good deal and supports such a great cause so get on it. Please don't be cheap though! This Bundle is ultimately designed to assist charities.