One of my teammates (Chris Visentin, Blue Belt Adult Lightweight World Champion 2009) just made this great highlight reel for our teammate and instructor, Lucas Lepri (multiple Adult Black Belt World Champion):

http://www.youtube.com/watch?v=scTAH0EVM6M

... the thing that leads me to post it here is the way Chris mixed footage of Lucas teaching with scenes of him using the same techniques at the absolute top levels of competition. I think this is quite valuable as an illustration of how variations on basic jiujitsu techniques continue to work throughout a fighter's career.

Also, his favored shoulder strike/knee tap combo is something I had only ever seen in CMA before Lucas.

Enjoy!