A couple of vids:

http://www.youtube.com/watch?v=IOyB4puda00

http://www.youtube.com/watch?v=8jZWOXhMcjE

http://www.youtube.com/watch?v=Hxsgm4co7D4

http://www.youtube.com/watch?v=iN_tpd9VOW0

http://www.youtube.com/watch?v=a4J46ZaHPxA