[Haskell-cafe] Haskell and OS X

Hi, I'm looking to get started developing Haskell under OS X, and I'm wondering what sort of IDE/implementation combinations people find productive. I've got haskell mode working with Emacs and ghc, this works okay, though the mode seems a little rough-edged, and the indentation appears slightly wonky at times. I didn't immediately stumble across any native OS X IDEs. What do OS X-based Hasellers tend to use? Thanks, Patrick