These days there are plenty of indie bundles to consider, but The Humble Indie Bundle remains the original bundle where you set your own price. The Humble Indie Bundle 6 - contains 5 games (an extra sixth game - Dustforce - is unlocked if you pay more than the average price (so there is some added incentive to pay more).
As usual you can split the money you pay between the developers, charities (Child's Play Charity and Electronic Frontier Foundation). and the Humble Indie Bundle, Inc.
In the bundle you will receive DRM-free copies of Rochard, Shatter, Space Pirates and Zombies, Torchlight, and Vessel. You also get the soundtracks for each of these games, and an extra dollar let's you unlock the games on Steam.
The Humble Indie Bundle 6 is available for 13 more days and you can head over to humblebundle.com for additional details.