As for a discussion on morality, try this discussion on this board: http://atheistforums.org/thread-6881.html (named: how do we behave?). The whole issue has been dissected into great detail there.
When I was a Christian, I was annoyed with dogmatic condescending Christians. Now that I'm an atheist, I'm annoyed with dogmatic condescending atheists. Just goes to prove that people are the same, regardless of what they do or don't believe.