The following website has been discussed several times before:
http://www.419eater.com/
It is one of the funniest sites I remember encountering. It includes "strategy" for baiting these people and pages upon pages of pictures of the scammers looking stupid. I'm too lazy to fuck with these people so I get my kicks by going to this site. The ultimate accomplishment is to actually scam the scammers as PredeconInferno alluded to above.