I know it's not related to the poster's question, but I take issue with your statement that gimp is useless for graphics professionals. The studio I work for uses FilmGimp (for 16bit per channel color) extensively for processing frames for cinema. CMYK isn't an issue if it doesn't go to print.
Many appologies: when I referred to Graphics Profesionals I was, of course, refering to print-graphics professional as that's my background. I imagine it is quite useful for other professional uses (despite my annoyances at it's clunkiness).
No offense meant, just incorrect broad stereotyping at work :)