One thing I seem to come across more and more as I go about my daily business is the number of times people say that faith in God is crazy or senseless. I am very much a geek. I also loved the philosophy class that I took in college. Couple with that the fact that I fall under the Myers-Briggs INTJ personality classification, and you definitely get the idea that I'm both an intellectual and not one to just blindly put my trust in anything, let alone something I can't see. The Christian faith is something that is reasonable, not the realm of blithering idiots.
God loves us all more than is imaginable, but He wants us to choose Him. I don't know about you, but if everyone somehow knew for certain that He exists, there would be a huge number of people who'd follow Christ just for "fire insurance." Faith could be put into the realm of playing make-believe without some form of evidence. If I were in His position, I'd sure put in enough signs to point to me but still make it impossible to definitively prove my existence.
If you look at Wikipedia's entry for Intelligent Design, you'll find, unsurprisingly, information which does not try to present information impartially. Study some of the topics important to ID scientists, such as the parts of a flagellum in single-celled organisms, and while you won't find proof, you will find something to ponder.
Understanding a bit about philosophy and logic helps understand a little more about science. I wish that more scientists chose to remember more about logical reasoning. Many times they are not aware of premises that they bring with them when constructing hypotheses or devising experiments. A premise, for those unfamiliar, is an idea which you take as fact without question. Each premise a person chooses force constraints that lead to a conclusion. What if a premise is somehow colored or biased? It will likely lead to a biased conclusion. If , for example, I assume that the evolution is true, then I take certain concepts as fact. However, if I assume that neither ID nor evolution is true and just go where the evidence leads, then I may find that it takes me to an uncomfortable conclusion. When proponents of evolution call to time and chance to put together amino acids or something else, they should also keep in mind the minute chances that they are referring to. It takes a great amount of faith to trust in probabilities like that. Perhaps greater than what it takes to believe in God. It's something to think about.