well if we're talking about the christian god as portrayed in the bible and all the tales, like adam and eve, abraham, noah, moses, jesus, and all that... its a different story. i dont buy that one. i dont think the tales of the bible are consistent with each other and with what we know about the earth and the cosmos. as for a more general version of a god, its another thing entirely.
you can ask chinook about it though. he's one of the guys here that is fine with the concept of the big bang, evolution, and is also a believer in god (again, not the christian, biblical god).
as for me... there is all sorts of evidence for the big bang, for evolution. as i've explained to you (and you claim to understand), the only reason those theories exist is because of evidence. where i disagree with theists is:
i dont think we need to assume that there is a god behind all of it (even though there are different definitions of a god, i would characterize god as a sentient, conscious 'being' that set the universe into motion, starting with the bang). the way i see it, our understanding of everything (though nowhere near complete) is rapidly increasing. right now there are questions that science can't definitively answer. a lot of them. and some people... when they reach an unanswered question, turn to god. i dont do so. years ago, scientists thought the earth was the center of the universe, and all the stars and the sun revolved around the earth. the orbits didn't make sense that way though, with the laws of gravity. they didn't add up. it was something science at the time couldn't answer... so it was an accepted idea that the "hand of god" moved the stars and planets, which was their explanation for their unusual motion. of course, the heliocentric (earth revolves around the sun) model fixed all the mathematical inconsistencies, and removed the "hand of god" idea. similarly, while we don't know certain things right now, like the exact cause of the bang... its easy to just place the "hand of god" there again.
there might be... but i dont think the default position would be to assume its existence. i'm open to the idea of it. if would be a logical fallacy to be certain that it doesn't exist.