I personally use a PC and I run Paint.Net on it, since I can't afford PS. However, my niece, who also can't afford PS and can't use Paint.Net since it only runs on a PC (and she uses a Mac OS X) asked me if I knew of a good, yet free graphics editor she can download and use on her Mac. I tried to Google it, but all the results came back dating from 2008/09. I've heard about Gimp and that they now offer it on a Mac, but you have to also download other addons and such in order for Gimp to run on a Mac as well. Apart from Gimp, can someone who has used them perhaps give a few suggestions on free Graphics Editors for a Mac OS X? Thanks so much in advance.