Riding Instruction Videos

You can download straight from Gary Semics site:

http://www.mxraceschool.com/

I actually thought McGrath's DVDs were good. Like Techniques of a Champion. It's more basic but has good info:

http://www.sportsflicks.com/DVDinfo/MX/jeremymcgrath.htm

Lines,Vision,Control use and Body position, watch good riders, get close and look for these things. Then slow down and copy them till you get comfortable and then go faster.

i always liked the Gary Semics videos.

but i'm bias as i started doing the demo's for the Utah schools. great information and technique