Tools used:
Sketchup: http://sketchup.google.com/
UV Tools (You'll need to register, but it's free and worth it.): http://forums.sketchucation.com/viewtopic.php?f=180&t=23725
UVMapper Classic: http://www.uvmapper.com/downloads.html
Paint.Net: http://www.getpaint.net/
PlayUp:http://www.playuptools.com/downloads/
Sandbox 2: Comes free with Crysis or Crysis Wars.
