This guy is mental, not much more you can say really.....
http://www.youtube.com/watch?v=IkawsBwJwpE
http://www.youtube.com/watch?v=IkawsBwJwpE
Followed some of the links on Youtube from the video.
This is amazing.
http://www.youtube.com/watch?v=Viu7U8_IhD4&feature=related
About to 2:40 in is unbelievable.
EDIT:
Also, these are actually quite horrible and a little sad considering the years spent training, but I couldn't help laughing at 0.48
http://www.youtube.com/watch?v=8Aoqg1z-x1o&feature=related