I'm a couple chapters into The God Delusion by Richard Dawkins, I visit onegoodmove.org a lot, and I'm surrounded by Jesus Freaks in 3 of my five classes. I have yet to find the opportunity in which to have a religious argument, which is irritating because I could probably demolish every person in every one of my classes given enough time and throat lozenges.
So, have a beef with organized religion? Or, are you a member of a world-respected religion that is too often persecuted by left-wing atheists? Wanna have a good, harmless-and-ultimately-irrelevant-because-it's-over-the-internet argument about it? This is the place for it.
While I don't think that it's a certainty that there is no God, I think that believing there is one and living your entire life by a specific set of teachings that may or may not be his does much more harm than good in the long run.