We're overwintering in the Bay area so I can actually help out on this one... maybe!
I've heard The Raw Connection in Carmel is good, but I don't know what they carry, where they source their meats, or their pricing. It's a retail shop that carries pre-made raw and kibble as well, so it might be more expensive than a grocery or butcher's shop. Still-- closer than Sac by far and you can take your pups to that lovely white sand beach!
SF has a raw co-op (SF Raw Feeders) but their price list looks extraordinarily expensive. Plus there is a yearly membership fee. I think they do pick-ups in the south bay but when I looked into them it didn't seem like a cost-effective way at all to feed.
There have to be some Mexican markets in Watsonville-- I have no clue where to begin looking, but if you could find one it might be pretty cheap.
Either way, I'll be interested to hear if anyone else knows of a good supplier for this area.