Kata Learning Help

I would really like the name of a site where you can download all or even some of the isshin ryu hand katas (seisan, seiunchin, naihanchi, wansu, chinto, kusanku, sanchin, and sunsu) in good quality for free. Please post any suggestions. Otherwise just post your favorite martial arts website here. Thanks!

my website has kata videos and will have some isshin ryu videos.

www.karateonline.org

Here's one you might like...

http://ironcrane.com/html/shimvid.html

This is master Shimabuku performing the kata you're after. It's 1966 though so don't expect too much quality.