Hi, TooBusy. As I said over on the prayer thread, I've been where you are now (including the totally uncomprehending partner) and know how it feels.
You've had loads of good advice already that I will try not to repeat. What I'd add is that it may help to remember that your relationship with God is, precisely, a relationship, and like any relationship it develops and changes over time. It's OK to be cautious at first and to allow things to build from there. I'm sure there are people out there who've had Damascene Conversion type experiences, but it doesn't have to be all bells and whistles and a big voice from the sky. I started out just letting the experience of being in church wash over me and enjoying the chance for some reflection and quiet and a bit of singing and I have no idea at what point in that process of letting it wash over me I really felt that I believed what I was saying, but it happened. During that period, I really felt that I wanted to pray, but I felt somehow that I didn't have 'the right' to do so - to talk to someone in whom I only half believed. Like niminy, I stuck to well-worn paths - the Lord's Prayer and a snippet of a prayer I'd learned at school (slightly ruined for me by the 'Grace' scene in 'Meet the Parents'
) which ends '...may we know you more clearly, love you more dearly, and follow you more nearly'. I slowly realised that that really summed up what I wanted: to know, love and follow God; but I also realised that those three things could develop simultaneously: just as we find things out about our partners by living with them and sometimes find ourselves surprised by them even after many years, we can enter a relationship with God without knowing all there is to know about him (even if that were possible) or about being a Christian. I think it's OK to say 'there are things I'm not sure about here - things I still need to explore - but they need not prevent me starting to build that relationship.
Initially, I avoided the issue with my DH as I was temporarily living abroad with the DC but without him when I first started going to church, but when I came back to the UK I told him very simply that I wanted to continue going to church. I accept that he doesn't like it, particularly, but I think that he sees it as a slightly incomprehensible hobby that he doesn't share (like golf, or knitting...). I reassured him that I wasn't going to start quoting the Bible at him at every opportunity or trying to convert him, and nor was I going to become a raging homophobe. All I asked of him was that he not mock religion actively in front of the DC (he can be as disparaging as he likes with me). The DC have been allowed to make up their own minds about it: one is an atheist and the other has chosen to be baptised and confirmed - their own decisions. So DH isn't particularly happy, but he has seen, I think, that I am still fundamentally 'me', and in some ways I'm happier and calmer than before, so he accepts it.
I'm sorry for waffling, but I hope this helps a bit. Thinking of you, TooBusy.