Extreme sports videos?

Hi! I have this idea where I could load my tablet with some extreme sports videos with some good pumping music, prop it up on my exercise machine and blast for a half hour while looking at some crazy stuff. Much better than staring at the Food Network like everyone else in my gym. The Food Network! Seriously. Working out while looking at food. Unbelievable.

Any ideas? Any video suggestions? Is there anything like this already out there? Surfing, skiing, BMX, hang gliding, maybe some “point of view” stuff like I am looking through the athlete’s eyes. Martial arts, free running, skydiving… Crazy high energy stuff. Thoughts?