Have you guys checked out Chi Running? Since I've tried to incorporate some of the Chi Running "philosophy," I've been able to get back into running and am planning to do a duathlon & a tri in 2007. Basically, you let gravity propel you by using a forward lean, keep your spine straight, relax everything - especially your legs - but your core (you power from your core), etc. You can get the book at Barnes & Noble. I used to run 1/2 marathons & did the Marine Corps Mary back in '95 until terrible piriformis syndrome turned me off running. I'm now running 9-12 miles a week, which isn't a lot, but my goal is to build a base for when I start training more seriously closer to my events next summer. NO INJURIES!!!