http://securitytube.net/Introduction-to ... video.aspx
SecurityTube often has some good vids on there (hint for some of the newer folks around here, who have been looking for tutorials, etc...)
"All men can see these tactics whereby I conquer, but what none can see is the strategy out of which victory is evolved." - Sun Tzu, 'The Art of War'
OSCE, OSCP , GPEN, C|EH