You should all go check this out right now: McCarthy on Non-Violence
The essay is about how important it is that non-violence be taught at the seminary level as a principle tenet of Christianity's ethical teaching. I found it particularly awesome that he quotes Jacques Ellul, who is both a pacifist and an anarchist. Needless to say, the content is fascinating.
You should also go read whats available on the website for the Center for Christian Non-Violence. The site has some great stuff on non-violence as taught from a Catholic tradition.