Well this bundle business has gotten out of hand. Too many good deals on in such a short space of time is suicidal for my wallet! Anyway I'm going to put up info for all the current bundles in this post.
99 Cent bundle - http://99bundle.com/
=Contains 13 freeware games that all look rather interesting.
=Pay what you want/Pay nothing
Little Big Bunch- http://www.getgamesgo.com/little-big-bunch
=Contains Frozen Synapse, Explodemon, Serious Sam Double D, Oddworld: Munch’s Oddysee and New Star Soccer 5.
=Ends 2nd January
=Pay what you want
Humble Bundle 4 - http://www.humblebundle.com/
=Contains Jamestown, Bit.Trip Runner, Super Meat Boy, Shank, NightskyHD
=Also get Gratuitous Space Battles and Cave Story+ if you pay $5.32 or more (as of time of writing) Pay what you want otherwise.
=Best bundle games so far in my opinion
=Ends 27th December
Xmas Bundle (Indie Royale) - http://www.indieroyale.com/
=Contains The Blackwell Trilogy: Remastered, Eets, Dino D-Day, The Oil Blue
=£2.95 as of time of writing
=Ends 26th December