Free Graphics Software
Paint.NET
Paint.NET is image and photo manipulation software designed to be used on computers that run Windows 2000, XP, or Server 2003. It started development at Washington State University as an undergraduate senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. It is meant to be a free replacement for the MS Paint software that comes with all Windows operating systems. The programming language used to create Paint.NET is C#.
http://www.getpaint.net/
Gimp
The GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
http://www.gimp.org/
Ultimate Paint
Ultimate Paint is a full-featured 32-bit Windows graphics program for image creation, viewing and manipulation. UP supports JPEG, GIF, PNG, BMP, PCX, AVI (reading only), TGA, WMF/EMF, ICO (reading only), IFF/LBM and WAP BMP image formats and Twain compatible scanners. You can easily print your image, setting its size, position and orientation.
http://www.ultimatepaint.com/
PhotoPlus
PhotoPlus 6 is the fun photo editing software that brings professional image editing to everyone with just a few clicks of the mouse. This free download enables beginners and professionals alike to produce incredible images for print, multimedia and the web.
http://www.freeserifsoftware.com/software/photoplus/default.asp
