I found these while looking on youtube the other day.
Scott Sattler
http://www.youtube.com/watch?v=BpcrTjal0is
Michael Searle
http://www.youtube.com/watch?v=DGO1BT42YqM
David Gallop
http://www.youtube.com/watch?v=oBvC4aZzb8w
Enjoy them like i did