San Luis Auto Salvage at 281 Tank Farm Road, San Luis Obispo, California.

First off this isn't a pick and pull yard like most. You can come in and they'll lookup the vehicle and parts information to see if they have it (fairly well organized), they'll write down the availability and location, they'll have someone wall out with you and they will pull the part after you choose what part you want.
Prices are a little higher than pick n pull yards but their service is better.
So far I've had pretty good luck getting the parts I needed.
I went last week for 2 cross bars for a jeep roof rack, got to choose from 4 different jeeps and picked the ones I liked, was $53.

Friendly and helpful. Patrick was great.