It's sorta the other way around with me. I was brought up not to believe in any kind of God... I got baptized but that's it. We never went to church, and my mom and dad kept mocking the idea of there being a God (even though my dad was brought up Christian).
Well, when I grew up and learned to think for myself, I've learned that science can be used to explain everything, and I firmly believe in science. I still don't actually believe in a higher being of some sorts, but I can't live with the fact that when we die... that we're absolutely gone.
Everything we learn during our life, everything we do... it just goes lost? It disappears? I'm having real issues dealing with that kind of stuff. My dad laughs at me when I say I believe there has to be something after we die. But I can't grasp it. It would mean that my life would be totally pointless, unless I achieve something like the ancient Greek philosophers or something, to being worth remembered for doing something important. I don't think I'm capable of that at all.
I also think the world would be better without organized religion, but it's pretty much impossible. There will always be groups of people believing in something and gathering followers, and get bigger and bigger. There will always be disputes about beliefs of people. It's healthy.
What's not healthy, however, is fighting about it and making war. People should be able to accept another person's beliefs and religion, end of story. Unfortunately, some people are incapable of doing so.
Anyway, I hope I sort of contributed to the topic.
If there was an actual God, he would have let us know somehow already (in a convincing way), and stop all those freakin' fights about him.