Here another beginner!!! A friend told me about an italian guy who teachs processing on-line thrue skype... i don't remember the price but was very cheap: here is the website:
http://blog.mondonerd.com/?lang=es
It's in spanish but i think that he should speak also english, like me... (I'm from Argentina - South America). So... i hope it is a help for you!
if not... :( other way is with the tutorials: www.funprogramming.org this guy is a great teacher!
I saw that he published his sketchs in http://sketchpad.cc so, maybe you can find him trough this site... i've search him but i didn't find the way to comunicate me with him...
I did a live processing project based tutorial the other day for some friends and ppl on twitter. Here is the live recording. Might have another one if people are interested. Also I live in the bay area, specifically San Jose, so if you want a lesson in person, feel free to email me.