There none in Northern CA...not even in SF.. One time Stahls put on a greatgarmentgraphics.com show and tell...but that was last year..nothing since..
The best/largest show on the west coast is ISS in Long Beach Jan-23-25 2009.. well worth the trip..especially for newcomers. go to
Imprinted Sportwear Shows click on Long Beach and then on Registration...it is free for exhibits if you sign up before end of 1st week (I think) of Dec 08