The Basement Collection is a handful of Flash games from Edmund McMillen, the developer behind Binding of Isaac, which is also part of Humble Bundle 7. The Basement Collection includes Triachnid, Coil, Meat Boy (that's right, not Super), Aether, Grey-Matter, Spewer and Time Fcuk. Offspring Fling comes from Kyle Pulver, the developer of Snapshot, and Cave Story+ is a pretty little 2D platformer from indies Pixel and Nicalis.
Humble Indie Bundle 7 now includes Snapshot, The Binding of Isaac and its Wrath of the Lamb DLC, Closure, Shank 2, and a copy of Indie Game: The Movie for whatever price you want to pay, and Dungeon Defenders (plus all of its DLC), Legend of Grimrock and these three new games for anything higher than the average. Each game comes with its corresponding soundtrack, except for Isaac.