http://www.youtube.com/watch?v=XbVhbQPblNY&feature=fvwrel
IMHO, Doug Stanhope is in the likes of George Carlin, and Bill Hicks.
He's already been recommended as a great dude in history, I'm just throwin him a beer.
He speaks the truth, and believes in freedom to do whatever the hell you please. Very dude.