Spriting Programs –
Graphics Gale - http://www.humanbalance.net/gale/us/
Drawing and Editing Programs –
Easy Paint Tool Sai - http://sai.detstwo.com/sai/
Gimp - http://www.gimp.org/
Paint.NET - http://www.getpaint.net/
Animating Software -
Synfig Studio - http://www.synfig.org/cms/
Adobe Flash - http://www.adobe.com/products/flash.html
Pencil - http://www.pencil-animation.org/
Toon Boom - http://beta.toonboom.com/
Game Making Software –
Adventure Game Studio - http://www.adventuregamestudio.co.uk/
Game Maker - http://www.yoyogames.com/gamemaker/windows
Video Editing programs –
Windows Movie Maker -http://www.microsoft.com/download/en/details.aspx?id=34
Final Cut - http://www.apple.com/finalcutpro/top-features/
After Effects - http://www.adobe.com/products/aftereffects.html
iMovie - http://www.apple.com/ilife/imovie/