OSX Astronomy programs

Anyone here a user of the joyousness that is OS X

I'm looking for a cool astronomy program, something like SkyMap Pro for
Windows. I did use to have the student edition of The Sky but that was
a Classic app and tended to run pretty slow. I like Xephem but to run
it I need X11 and it doesn't look the prettiest, even though feature
wise its pretty awesome.

Just wondering if anyone had any good recommendations. I'm in love with
Octave/GnuPlot for programming, just looking for something nice and
visual.

--
The true enemy of science is psuedoscience...