@Hodari: String theory is an entirely different case. I don't know how much research you've done on the debates in the physics community, but there are actually a number of theories that do an equally good job of explaining particle physics, and at the moment there are no known experiments that could actually disprove any of them with respect to the others. For some reason the attitude in most of the physics community is that if you're not working on string theory you're wasting your time and deserve no respect at all. On the other hand, evolution is well-documented, fits the available evidence, and has no reasonable competing theories.
@insane569: Speaking of "just a theory", the word "theory" is pretty much the best you can get in science, because scientists know that it is always potentially possible for new evidence to come up that requires us to change the theory (perhaps only in the details, perhaps on a larger scale). There is no dogma in science, just a lot of smart people and a lot of evidence/experiments.
But let's not derail the topic too much. Back to paranormal events, specifically psychic phenomena. What do you guys think of Randi? I personally think he's pretty awesome, but I'm sure there are some who will disagree with this.