I always make sure to take part of these "name your price" things that indie developers do. Especially if there's a game I know I'll want to check out someday. I got World of Goo in this manner a long time ago and only recently got around to spending a couple of hours with it and it was definitely worth the $5 I decided to spend on it.
Anyway, the Humble Indie Bundle #2 contains Braid, which is a game I've wanted to try for awhile. I probably won't play it for a long, long time. I've got too much going on right now. But I might as well grab it and support the indie development community.
There's less than a week left for this one, so grab it now.