[eridius]

If you need to do basic image editing on OS X I'd say use Acorn[1] or Pixelmator[2].

[1]: http://flyingmeat.com/acorn/

[2]: http://www.pixelmator.com

[ams6110]

I like LiveQuartz

http://www.rhapsoft.com/

[barbs]

I like Paintbrush

http://paintbrush.sourceforge.net/

...what?