Helmet shops - Bay Area?

[MrFox]

I'm looking to get a helmet for track.SA2000 is the current spec right? I know online probably has better prices, but I'd like to find a place where I can try them on before I buy. Any recommendations in terms of shops around the Bay Area, or specific makes/models I should be looking for?

EDIT: Does anyone have an old helmet they want to get rid of??? Turns out this outfit doesn't care what kinda helmet it is - motorcycle/auto/year as long as its a helmet. Just need it by Oct 8th. Thanks!