Not too much. I'm a word person who's been moved into graphic design, so I've had to learn Photoshop and Illustrator and QuarkXpress.
I think I used PSP back in the 5 or 6 days, but it's been awhile.
Graphic design. I'd love to know more, especially art-wise. I'm self-taught on PSP and am very happy with it. It does a lot for a little cash. It was just bought out by Corel, which is interesting.