Chronic, I would also suggest you go to Pacific Support Services. It would be worth it in my opinion if you could make the trip. It's the only place I know of that has a coupon and that offers such a reasonable deal for renewals. Though if you can't make it I believe the website of the California chapter of the National Orginaztion for the Reform of Marijuana Laws (CANORML) could help you.
-Umpsy
p.s. I aplogize in advance if this violates posting guidelines.