Yep! It's really the only "sport" I've ever excelled at.
Lol. Funny story, actually. When I was 12 or 13 I would take styrofoam siding, cut hand holes in it and jump off of the barn roof trying to fly. It never really worked, but it did give me a fascination of jumping from high places. I was introduced to the idea of parkour when I was 15. Just recently, I've started actually training for and following the principles of parkour.
I don't have any videos, but I do have a couple recent photos on my blog: Parkour Photos Tyler's Tree Fort