Allen Snyder's Deadly Sinful Bush is No Christian is a great read. As a teacher of philosophy and ethics, he is understandably upset that Bush presents himself as 'a good Christian'.
I have to say, though, that it's quite often the 'good Christians' that scare me. I would rather deal with a militant agnostic (I don't know and you don't either!), a questing new-ager (we are all God...), or perhaps a raging Tasmanian Devil.