The GIMP (see google.com) A lot of tutorials are available and if you look you'll find The GIMPShop (photoshop work alike.)
Next if you can find it, the PALMONE Desktop software has been noted for it's redeye removal. I'll just note that it's a freebie but decline to find or comment further.
Finally, Picassa is free at http://picasa.google.com
Can anyone recommend a good photo processing software in the $100 range (or less) to go with my new Christmas camera? A program that will allow me to adjust contrast, sharpness, color, red eye, add special effects, crop, etc. I have an old version of JASC Paint Shop Pro but there are probably better editing programs out there now. I'm running Windows XP and don't do movies. Any suggestions will be appreciated.