Butch sent word to Subnova that his Mac OS X Hotline client, Frogblast, has reached 1.0 status and is now available to the public. I have been using the client since its initial beta six months ago and can tell you that it's far superior to BigRedH's official client.
Check out the Frogblast website for more information and then download it at Subnova. Be sure to stop by RHL once you're all setup.