I don't believe that there are too many aikido sensei in the Bay area who are familiar enough with Saotome sensei's weapons system to teach them. Ther was a long time Bond St. Dojo guy named John Lewis who used to teach in Mountainview but has since left the dojo space he was using. He was living in that area for many years and if you can track him down, he might be your best bet in that area. Otherwise, head out to the Boulder Summer Camp in August to catch Saotome sensei. I'm not sure if he is now doing nito as a regular thing as he stopped doing it for a number of years. Two years ago he did do a little during a camp I attended, but I don't recall hearing that he's been doing it regularly again. If you go the video route w/out someone who knows that "system", you're likely to gain bad habits & form which may later become difficult to "unlearn"!