Here is a list of some cheat code sites to check out. If you have some of your own favorites share them here.
http://www.cheatcodes.com/
http://www.cheatcc.com/
http://www.gamespot.com/cheats.html
http://cheats.ign.com/
http://www.cheatscodesguides.com/
http://www.gamesradar.com/cheats
http://www.cheatcodesgalore.com/
http://www.cheatworld.net/
http://www.cheatcodes.com/
http://www.cheatcc.com/
http://www.gamespot.com/cheats.html
http://cheats.ign.com/
http://www.cheatscodesguides.com/
http://www.gamesradar.com/cheats
http://www.cheatcodesgalore.com/
http://www.cheatworld.net/