Cloth or Disposables?

So far everyone I know has used disposable diapers. I have read/heard though that cloth are cheaper and better for the environment. I have no one to explain to me how they really work though (one size vs. sized, absorbancy, covers, pre-fold, that kind of stuff). This is the first kid and I'm confused here! The web sites that I have found don't clarify things either, as they seem to be geared more towards selling the product and to people who have a knowledge of this type of thing. I want the minimal amount of work with the maximum benefits (as I think we all do). Someone please shed some light on this for me!.