I don't draw or create pictures in the hobby, but I sometimes use GIMP(The GNU Image Manipulation Program) to edit some pictures.
GIMP is opensource software, and it has a lot of functions that quite equals Adobe Photoshop.
(For example, supporting alpha channel, layer function, some special effects etc.)
You can download this program at non-cost.
GIMP Home...http:www.gimp.org/
Download windows version...http://gimp-win.sourceforge.net/
However, the windows version of GIMP isn't imperfect program.
So if you use this program, you should take some backup of image data.
28-Jan-2006