Hi skibum: Welcome to the evcforum (I seem to be the unofficial greeter today). Believe it or not, I have no problem with someone who believes in both a supreme deity and accepts evolution. There's a lot more of you around than the average creationist would like to believe (I'd guess the majority). You're absolutely correct: science can not, by definition, prove or disprove the existence of a deity. It is not a question that IMO resides rightfully in science's purview. BTW: I don't think Dawkins actually uses science to try and disprove God. He IS a strong atheist, and a vocal one, but his opposition is philosophical, not scientific - a distinction about which he is quite clear in his talks and writings.
Anyway, welcome!