Any good Jo staff Katas out there?

Hello. now that i have your attention id like to ask a favour. Im a new Jo staff user but have been training in Bo staff for a while. Now i know this hasnt mentioned katas but hold on. I love learning new Katas, i do Wado Ryu Karate and nearly know them all now...WA! no more to learn, i even know some Goju Ryu ones. Studying weapons is a new interst of mine and i really want to know if any Jo staff katas are availible for studying on the web or if there are any books available that show many Jo katas. The same applies for Bo. Thanks you for your time. Before i go can anyone suggest a cool weapon to learn as im interested in learning many. Thanks again. Alonzo