Ian sent word to me that the new User Friendly web comic had something I'd be interested in. See for yourself.
I had iTunes search for files on my machine as well. It was definitely slow, but what really annoyed me is that it added any media it was capable of playing - videos included. I thought it was called iTunes, not iMedia! So then, I had to go through and hand filter out the non-audio files before I had a usable playlist of mp3s.