Honestly, I haven't looked. Arbee's wip emporium lists something:
http://rbelmont.mameworld.info/
I just use the terminal, since I use it for other stuff too. And I'm tired of using platform-specific mame frontends, since (at least on mac) they tend to die after few versions (well, MacMAME survived quite long, I think) out and I can't be arsed to relearn essentially the same stuff again.
Really, I know it goes against the mac heritage and pedigree, (I've been using macs since -95, I know), but learning to do basic stuff in terminal is really useful and recommended. Check this out for starters:
http://barelystable.com/tutorials/termi ... ction.html
Most of this stuff applies directly to linux too, since they both use bash shell. (some older osx versions used tcsh shell by default, but bash was available. And that really doesn't make any real difference until we start talking about shell scripting)
Do yourself a favor and get acquaintanced with terminal. You'll be surprised how useful tool it can be. I promise.