Photo-Brush 5 is image editor, painting program, picture retouching tool, photo enhancer and RAW Image Browser for Windows XP and Vista.
It is also probably the best value around. Consider this:
* All the typical adjustments you need (Exposure, Levels, Hue/Sat/Luma, Cloning, various Sharpening etc.)
* Plenty of professional tools (Chromatic Aberration, Barrel-Pincushion, Perspective Compenstation etc..)
* RGB, HSL, YCb/Cr, Mask...