Snappy the Clam

Via mph via ed, a tutorial for Quicksilver, an open source replacement for LaunchBar. I've used LaunchBar pretty obsessively since I got back on OS X, but Quicksilver is one cool-ass app. If you download it, read the tutorial, like mph says. For the first hour or so I used it, I couldn't see any reason to give up LaunchBar, but go through the tutorial (it's really short, it might take you 10 min) and you discover features like:

• you can browse iTunes playlists and your library. I have really wanted something like this for awhile now. Combine this with something like Synergy and you have a very convenient interface to your music.
• browse contact info (though they could lose the enormous screen-filling type when you display a phone number)
• multiple clips
• a shelf for frequently used items (though truth be told, I don't care about this sort of thing so much; stuff I use frequently I usually have open, since I seldom shut down my machine.)

Try it out. Highly recommended, so far.