MacHeist has their Xmas Giving Tree up, and if you register with them for their promotion today, you may just find some nifty Mac software wrapped up for you beneath it! Send them a shout out on Twitter, and you may just find some iPhone apps dangling from the tree as well!
We're not 100% sure how it works, or who gets what and why, but you'll definately get something for your trouble. Act fast though, like Santa this deal is done in a day!
(I see Synergy, Enigmo 2, iConquer, 1Password, and Headline so far!)