I'm assuming you're in San Diego, so I would recommend the Super Jr. Market downtown. Awesome selection, and the guy that buys the beer really knows his stuff and is very helpful.
So far I think Beverages For Less in Santee is my Favorite, the owner really knows beer. He is really good a recommending new brews. Also, sorry about the typo on "buy" it came out by for some reason, I blame spell check.