Here we have three great and free programs to help with creating content for your games and programs.
- Audacity – Audio Editing Program
- Gimp – Image Editor
- Install Creator – Makes Install Files for Programs
Audacity
This is a simple yet powerful audio editing program that can mix channels, add effects, and save to multiple file types including Ogg Vorbis which is used a lot in the game industry.
http://audacity.sourceforge.net/
Gimp
If you don’t have the cash for Photoshop, then Gimp is probably your best next bet. Not as powerful and easy as Photoshop, but should be able to do enough for all that sprite editing.
Install Creator
A neat little program that creates installers out of zip files. Allows you to place programs in the Program Files, auto create a short-cut to the desktop, and even can create an uninstaller that you can find on the Add/Remove Programs.
http://www.clickteam.com/website/usa/installcreator.html