I was forced to give up running several years ago after my knees went bad. I read a book recently called "Born to Run" by Christopher McDougall. Very interesting book! He is a big advocate of barefoot running on soft surfaces. His gist is that running in shoes permits you to use a weird stride that hurts more than it helps. Running barefoot forces you to run in a certain (correct) manner, which causes less wear and tear. It kinda made sense. I'm going to give it a try. I may get some of those icky "toe shoes" that you see sometimes. Anyone have any experiences with barefoot running or those icky shoes that they'd like to share?