I caught a write up about this web site the other day. I hate to plug something commercial, but this site has a good collection of kiteboarding and windsurfing videos for rent via download. They also have a bunch of other alternative sports. I know my wife bought me a kite video for Christmas which cost her $30 and I only wanted to see it once. It was already seriously dated. If you rent this way you don't have to shell out for something that's lame or like me, won't ever watch again. http://www.totalvid.com is the site for those interested. The quality is a bit poor and you have to watch it on your computer if you don't have it hooked up to the tv, but Blockbuster doesn't have movies like these. They had a promo going of two videos for $4 when I rented. Sick days was a decent one for kiters.
Mike