http://www.indiebundle.org/getem-greenlit-bundle/
For $5 you get Desura keys for
The Sparkle 2: Evo (win, mac)
Dawn of Fantasy (win)
Depth Hunter (win)
If the games get greenlit, you're also supposed to get the Steam keys for these games. On the same page is a poll, and if you vote you get a 5% off voucher code.
Probably worth it for Dawn of Fantasy, since that game is regularly priced at $25 and it looks interesting.

Great price for 3 games.

Looks Cool

My depth hunter for desura never gave me any serial key in order to play it. When you start the game it asks for it.

That's just a warning. I never bothered to ask desura support, but it's shocking a game is sold like that.