What are good UCI-compatible GUIs for Mac? Is anyone running a UCI-compatible GUI on a Mac?  Preferably something native and modern, so WINE and Rosetta (etc) are not needed.  My goal is to simply set up chess positions and let Stockfish analyze.

Any suggestions would be appreciated.
Wow, I usually wouldn't add another answer like this, but I've been quite impressed by the fork of Scid called Scid vs PC (which is more actively maintained, and has a mac distribution called Scid vs Mac). I found it while looking for mac build instructions for Scid while trying to make scid do a better job of processing stockfish's input. (and by the way, Scid vs PC doesn't fix the stockfish 2.2+ problem, as it still depends on the tcl one line at a time input parsing).