If you’ve made “the switch” and you love The GIMP, check out Wilber Loves Apple, a newish website dedicated to all things GIMP on the Mac platform. From their website:
Hi there! We are bunch of Gimp Fans, who try to provide a proper version for the mac. We are not related to gimp.org. We just admire their work.
I’m downloading their 2.4.1 port now!