If believing in God means I have to believe in a personified, Omnipotent, omniscient, being who created man and then decided that for man to really be perfect he need to cut off part of his @#$% then I'm an atheist.
If believing in God means believing in some sort of creative force or that in some way everything is interconnected and God loves and takes care of us the way we take care of an aquarium wanting the best but not caring if a guppy or two gets eaten then I'm an agnostic.
Most likely God is just our gratitude for and fear of, nature and each other.