I'm in the market for an alternative to Photoshop for my G5 tower. I tried GIMP and I'm a bit blah about it; are there any other options that you can recommend?
Due to the expense of Photoshop, I bought Pixelmator a year or so ago. I only do photo-editing with it, so I can't comment on using it for design, but it has been powerful enough for me.
I'm not sure if Pixelmator can run on pre-Intel macs, though.
Check out Alternativeto.net for a list, among them are pixelmator, gimp, pixel, and others.