Those are good resources. You can try www.ninjitsu.com
too. Its Rick Tews style. Its not very traditional but seems decent. He has some good skills, and seems to be a very good instructor from what Ive gathered. I would go with the Masaaki Hatsumi instruction if I were you though. You could also check out some Kendo, Iaido, Kenjutsu.... Id go for the kenjutsu if your interested in ninjutsu. www.ninjutsu.com
Bujinkan Ninjutsu home instruction DVD's you might want to check them out if theres not a dojo near you.
The description on the site make it sound a bit cheesey but its really not at all. Its a good deal "if youve had previous traing in any MA" If you ohavent Id do that first before you try to make use of a home study course of any kind.
[This message has been edited by DV8R (edited 06-17-2004).]