I know there's one near Beatnic in Downtown Fullerton. It's kinda hard to find, but it's hidden in a little shopping area. There's also another one in the city of Orange/Tustin off the 55 Freeway and (I wanna say) Katella Avenue. It's on the northeast corner of Katella/Tustin.
And if you're in Buena Park, there's a baseball cards shop about 2 blocks south of Knott's Berry Farm on Beach Blvd. It's on the right between Crescent/Lincoln Avenue. You'll see a stop light and it's on that southeast corner. Turner's Baseball Cards is the name, I believe.
Sorry, I wish I could remember the names of the first two.
Frank And Sons have great autographed stuff for great deals. I bought a Kobe signed Basketball for $150 authenticated by Global. I bought it off Carrol if any of you guys know her. She has other great deals on signed items. Tell her that Willie a friend of Ken Wong told you. She might be able to give you a deal. Idunno