Replying to Ski Physics

Alright my physics final is a 30 min video presentation on anything haveing to do with physics, so naturally I choose skiing mostly so I could justify watching ski videos all day in class. But now its getting down to crunch time so if anyone knows of any good websites explaining the physics of skiing, specifically jumps, ie. velocity, angle of launch, rotation ect. Id greatly appriciate you letting me kno. Also I need to incorperate some sort of interview into this bitch, so if anyone has a video of a park designer talking about makeing a jump or anything that would be cool too. word.