Just a reminder — BarCamp Austin 2007 is coming up, March 9th - 10th (during SXSW Interactive.) The event is currently planned to happen at Bourbon Rocks (Neches and 6th), but you’ll want to check the wiki the day before in case something changes.
A Short History of Nearly Everything by Bill Bryson -- a true tale of scientific thinking throughout history. You'll be amazed by how much we still don't know.
Getting Things Done: The Art of Stress-Free Productivity by David Allen. I'm a bit of a GTD freak since reading this, but productivity == $$ (whether you can simply get more work done in a given time, or work less by focusing on the right tasks.)