The closest distributors to you are:
McLogan on South Main Street
Best Screen Printing Supply on South Hill Street
Parmele Screen Process Supplies in North Hollywood
Don't forget:
TW Graphics in City of Commerce
Nazdar SourceOne in Garden Grove
Screen Printers Resource in Anaheim
You will not really find any screen printing supplier set up like a grocery store where you can stroll down isles and plop things in your cart.
Nearly everybody delivers the next day, either in their truck or UPS.
Come to Long Beach this week for the Printwear Show at the Long Beach Convention Center. Come and talk to me half an hour before my seminar (2:30p) on What To Buy on Wednesday 3pm. I'm doing 3 other screen printing seminars. The show runs the 9th to the 11th.
NBM Shows: Long Beach August 9-11, 2007!