cymry - I grew up in a family that were relatively religious but not overly so, and religion was just something that I sort of accepted, probably because my parents did so I assumed they must be right.
DH is employed by a church as a youth worker, and although does believe in God etc, isnt in your face religious (for want of a better expression).
Recently though, my dad has been talking more and more about how he now thinks that religion was just started to keep people in their place etc etc and how God is necessary for some people, but he doesn't need to belive any more, and so doesnt.
Now that he has expressed this view, its made me start to question why I belive certain things too. I think I probably still believe in a God, but as you say - the rest doesnt really make much sense to me either.
I think that what you believe can be a lot about how you were brought up and who around you believes certain things, but when you really examine your own thoughts, you cant simply just fit in with what other people want.
It doesnt necessarily have to be a major problem though does it? For example, with us, DH knows that I now have more doubts than I used to, but he is happy to agree to disagree, and enjoys having debates with me now about our views. I still take ds to church as dh works there on a Sunday and the church is full of nice people who really like to see ds - that may be hypocrtical of me to go, but at the same time, my thoughts on church are that it should be open to anyone who wants to go - believer or not - if they respect the rest of the people who go etc.
sorry has been a bit of a ramble, but your post certainly resonated with me.