Like Franky, I personally don't believe in God and do believe in evolution.
But I'm just not sure we know enough about our history to give too many conclusive answers - there's often talk about a "missing link" in the fossil record of human evolution.
And isn't it fairly well documented that evolution is a VERY slow process? (Too slow for humans to have evolved in such a short time frame).
I've read different opinions though and it seems even leading scientists can't decide (or simply do not know).
My personal opinion is that our history is and will remain a mystery.
The link below is just an example of how alternative history just might be possible.
After all, it's more believable than the bible!
http://www.luisprada.com/protected/the_lacerta_files.htm