OK - only as I was asked:
I went to church because I lived in a small village and everyone did, pretty much. A a child, I had no choice. As a teenager, I didn't go every week, but I went to the matins and family services because my friends went and it was a nice place to be sociable.
I don't think it really occurred to me to ask myself consciously if there was a god. I just assumed there had to be "something" because of all these churches and all this hymn-singing and stuff. At university, I went to a few "traditional" chapel evensongs, more out of a sense of duty and because I liked the atmosphere. I met a very sniffy girl from the CU who tried to get me to come to their happy-clappy services - did a few, didn't like them. Her words: "Well, if you think being a Christian is about Chapel Evensong that's your loss." My thoughts: "what a snide little bitch."
In my 20s I started going to church less and less and thinking about it more and more. By my mid-20s I realised that I just didn't have to do this any more. I was consciously thinking about god for the first time and realising there was no evidence, and that my life did not feel any more fulfilled by going to church. It felt tremendously liberating.
Got married in church because DW and her family wanted us to and I didn't mind one way or the other. But that was 10 years ago - since then I've given it a lot more thought and moved from wishy-washy agnosticism to atheism. And never looked back.
I suppose that's why I always tend to agree with the arguments about atheism being on the side of the "thinkers" and the "rational", because my personal experience is that I became an atheist once I actually started to question things and when I stopped just accepting what I was told. I see it as a definite progression, and can never help the association of blind Christian faith with my younger years, when I didn't know any better. Being an atheist is part of moving forward in my life. I have learned to be an atheist in the same way that I have learned to be a husband and a father and to speak German and to "get" mortgages and to be a good writer and teacher - the idea of becoming a person of faith again would seem as utterly ridiculous as "un-learning" any of those other things.