Welcome to Aikido Mr. Kenihan. I don't practice Yoshinkan but I have a 3 DVD set of Yoshinkan Aikido by Shioda Sensei. If you get a chance to purchase them, your money will be well spent! In fact, I've been watching them at work recently since I have a break from school.
Mr. Shockley: you don't need to speak Japanese to attend Honbu. The Senseis don't speak in the main hall. Four fast demonstrations then practice, at least that's what they did when I was there 3 yrs. ago on vacation.