Well Beachwood bbq in Seal Beach always has some good stuff on tap.
Here is a link to the webcam on the beer board, it is updated every 15 mins.
As of this post I see Blind Pig, Dogfish Festina Peche, Victory Hop Wallop, Sublimely on cask, Alesmith etc...
The other Place is Hollingshead Deli in Orange. They carry everything you can imagine. Last time there I bought a 6 pack of Pure Hoppiness and the time before he was cutting deals on Pliny by the case. They also have a bar with tons of great stuff on tap.