Im going to put it right up and front and say: I dont believe in god.
I didnt say to myself: Thats stupid, there obviously isnt a god. It was a long and depressing process in which I finally accepted that I didn't believe in him (i spent probably a year trying to convince myself he existed)
You talk about the heart not being able to just 'HAPPEN!!'
Things happen gradually. reaaaaaaaaaaaaly gradually. Things that work, stay. Imagine a cell multiplying into two cells. It sticks together, strength in numbers. Over time, it builds on this theory, collecting even more numbers. But then it gets so big that the whole thing cant sustain itself. one half might get the food it needs while the other side misses out and dies. So it starts throwing or catapulting the resources the Cells need across the system of cells. Over time it gets more complex.
Another note. I think, in alot of ways, the Dinosaurs prove evolution. According to paleontoligists (sp is all wrong) dinosaurus were brittle, easily hurt. If a large theropod fell it could break a leg, be prevented from hunting and in most cases die. Over how many millions of years, Evolution has proceeded with survival of the fittest, eventually makeing better organisims. (eg: small insects can fall huge distances and be completely fine.)
Its like selective breeding. in selective breeding, only the prime animals are allowed to breed. The result is generally better animals.
In Evolution, the best designs survive as they are better coped of dealing with their surroundings. The result, better designed creatures (not just animals, plants also evolve.)
As I final note, that "something we are missing" is acceptance that we now have a better explanation. Creationism was scientifically accepted hundreads of years ago. When we didn't know any better. Now that we have progressed, we have learnt more, we can form a better theory. RL, you complained that science only applies on theory to things, evolution. That is because it is the most recent and up to date theory. Sure you could argue that Darwins theory is ages old. But unlike creationism, evolution welcomes change. Creationism was set up to stay as it is and never change. things have changed alot since darwins time.
Just look at my younger cousin, her name is Hannah if you were wondering. I remember when she was about... 4-5. She asked me why the sea is blue but the water in her glass wasn't any colour (smart kid, eh? I never questioned the whole water=blue theory untill I was way older than that) I simply said to her: "I dunno either. You tell me. Why do you think the water in your glass isnt any colour and the sea is?" She reckoned that the County Council didn't like the colour blue, so they made their water see through. If I asked her to tell me "why the water in her glass isnt any colour but the sea is?" now, she would look at me funny and then reply "because the sea reflects the sky, duh."
When she was 4-5, the best explanation that she could think of was that someone was changeing the water. Now that she is older, and understands more about our world, she can say happily that its just a reflection and that ALL water is actually see through, just depends on where you look at it. Now imagine if when she asked me why the water in the glass wasnt blue, if I said to her "Because the county council changes it" She would accept that as fact. She looks up to me. Alot. She would never even consider the idea that I lied to her. If someone told her it was just a reflection, she would've contridcted them and said "No, the county council changes it. My older cousin told me."
That is why I believe you shouldn't believe anything unless you can prove it.
Sure, there are exceptions. Like in Maths (or math to our american members

)
The teacher explains the rules of algerba and eventually you can decide that yes, X=4 and it makes sense as to why it does. But then the teacher could be lieing to us about those rules, or she/he has no proof for those rules. But thats where creative thinking comes in, Mathematics, things with no physical presence on the world.
Then we have Science. Science comes in and builds upon creative thinking. Science finds out "why rules are right" Or in some cases, why they arent right. You could argue your whole life metal doesnt melt. You could declare to the whole world that metal doesnt melt and that is fact. However, that doesnt mean a scientist wont say: "thats an interesting rule, lets find out WHY metal doesnt melt" then of course he melts it and finds out that amazingly, metal DOES melt.