Macintosh Freeware Image Editors?

I was wondering if there’s something similair to Gimp that’s available for Macintosh. ( I’m aware of MacGimp, but I’m still on 10.2.8 ).The only good image editor I know of is Graphic Converter, but it’s shareware and doesn’t do anything like airbrush or rubber stamping, etc. I’ve seen CinePaint, anyone use it? Any opinions/reccomendations are appreciated!

You could still install Gimp through fink.