Well, they're at it again.

http://www.humblebundle.com/

Uplink
Darwinia
Multiwinia
Defcon
[Windows Only] Subversion City Generator Prototype
[Windows Only] Voxel Tech Demo

with Aquaria and Crayon Physics as the prizes for being higher than the average.

If you don't already own Defcon and Uplink, I'd suggest grabbing this bundle, it'd be worth it for just those - quality games.

Sadly, I literally own everything availiable in the pack already.