What a neat site. They even have a service where they search for the plants you want... not a database search, because there appears to be no centralized database service for locating plants worth mentioning... instead, actual people keep an eye out for your future musella lasiocarpa, and let you know when they find one.
Looks like I have a place where I can order my eucalyptus trees, without having to search through a bunch of nurseries.
Still, I know there has to be some easier way for people in the Bay Area to get a wider variety of plants than typical garden center offerings. Any suggestions out there?!