How To Create Graphics w/GIMP
Adobe Photoshop is an amazing piece of software, in my opinion - and, apparently, the opinions of legions of photographers around the world. One of the few drawbacks is that it's very expensive software to purchase. Fortunately, there is a powerful alternative to Photoshop. It does almost everything that Photoshop does - except carry the $400+ price tag.
It's called GIMP!
GNU Image Manipulation Program (popularly referred to as GIMP) is a free Open Source software that is is available under a public license.
Learning GIMP is easy and a lot of fun. Once you master GIMP, you will simply love it. You can download the software here: http://www.gimp.org