Quicksilver, you either love it with all your heart or just don't get it. We here at TUAW are Quicksilver
boosters (I've said it before, and I'll say it again, a Mac without Quicksilver doesn't seem like a Mac to me). It
would seem that we are not the only Apple centric blog on the block that is crazy for Quicksilver.
The Apple Blog (they're not official either, so don't worry) has produced a screencast (a quicktime movie demoing the app) all about setting up Quicksilver. This is worth a look if you want to find out about all the hubbub about Quicksilver, and you don't feel like installing it on your Mac.