Jason,
The BBQ Headquarters has the best selection in the area.
For SM products, I usually order them online at Big Poppas Smokers.
I j=have not been to a BBQ Galore store in a while, so not sure what the local ones are carrying now a days.
Ace Hardware in Santa Paula has a decent selection of charcoal, and some rubs and sauces.
Good luck,
Bill