Iridient RAW Developer: OS X photo tool for $60

Since I've moved to a Canon DR XT dSLR, and learned more about the theoretical advantages of RAW images and the limitations of in-camera processing, I'm thinking of moving to RAW. I'll probably due this using Aperture 1.01 (when it's out), but in the meantime I'm going to play with: Iridient Digital - RAW Developer for OS X. It got at least one impressive review.