"I believe a combination of both."
Me too. It didn't happen in seven days. Sorry. Not beleiving in the seven day theory doesn't mean I'm going to hell. It just means that my God is such a good scientist that none of the authors of the bible could possibly comprehend the message they were trying to write. I skip over the things man tried to wrongly comprehend though and say, if there is no God, where the heck did it come from? I have no problem with a Big Bang theory, especially since the way the bible explains it, the Big Bang would have been a colossal Bang that had about 5 billion years all wrapped into seven days. But, what happened a couple of days before the big bang? Everything was null and void, and without form? Ok, what was it made of? Who made that? I can beleive in God without beleiving that the people who interpreted the the bible knew what the heck God was giving them. No, "God did it" doesn't work for me. I beleive God did it, but I want to know how. And to do that, I use the scientific method. Which gives us just about every piece of technology we have today.
The big bang is a good place to start. There was a formless void and then there was light.
Perhaps the problem here is a lot of people think of Gods "7 days" in our time frame. Our day is 24 hours, his may be 1.5 million years (just made that number up, not stating it as fact). Or perhaps the bible was written so man can actually understand it. Remember, we only use, what, less than 10% of our brain. Pretty sure He knew that.