Anyone hear of a method of training called cross fit? It's kind of a whole-body workout that's supposed to be pretty grueling. There's a place offering classes and the workouts not far from here but I'm kind of afraid it will be too intense for me. I consistently work out, but I'm not intense or competitive about it.

On the other hand, I would love to be stronger and in a practical way, not just lifting weights up and down at a gym.