Thoughts on evolution...

What with all the talk in the news about "intelligent design" (god is a really clever set-dresser who wants us to think we're doing something with our 'science' stuff) and creationism (take a myth, make it your reality), it occured to me that I never really got evolution. I mean, I get the concept, but I failed the test once where you're supposed to take these oh-so-highly specially selected nuts and bolts and organize them in a hierarchical evolutionary thing. And you know, I didn't understand it then, and I still don't. I'd fail it again. I know I would. Does this mean I have to believe in the spaghetti monster?