Personally I believe that there is a God, not necessarily a being, but an ultimate power. However, i also believe that religion is simply a concept or a tool. Like any tool, it can be used both for right and wrong. History shows, it can be used for power. However, we also see the goodness it can bring out in people.
As for the "Creator". Does it have to be something of intelligence, wisdom or consciousness? It could (for all we know with OUR limitations) be one simple unifying element that triggered a chain reaction or cycle that has brought us to the present.
I am a firm believer in science. The big bang, i believe, is the creator of our universe, but i do believe there was existence before then. I believe that there is a creator for the big bang, not a God or a figure of intelligence, but a reaction of the combination of the right circumstance and the right ingredients.
Not everything happens with motive or for a reason. Lets be honest, sometimes, things just happen. Never the less, it always results in a REaction.