I say this with a lot of reservation, as honestly ALL of the Humble Bundles have been pretty great. However I think this one takes the cake for “awesome games to insanely cheap price” ratio. Humble Bundle 4 has just gone live and features such amazing games as Super Meat Boy, Shank, NightSky HD, Cave Story+, Jamestown, Bit.Trip Runner, and Gratuitous Space Battles. All of this for the low price of WHATEVER YOU WANT, though to get Cave Story+ and Gratuitous Space Battles you’ll have to beat the average price when you buy (currently $4.86).
DONE and DONE. Get to it, as every single one of these games is worth at LEAST $5 on their own.