I have a sleeve from Steve, it took me approx. 3 years to get in, but once you're in you won't regret it. Steve is not only a great artist but a very humble guy.
I have seen all the "seasons" back pieces Steve has done and they are all top shelf.
I think he has a few of them posted on his instagram.
Quality is worth the wait.
I hope to start a rib/leg piece with Steve in the fall.
Steve was telling me he gets about 1500 emails a month requesting tattoos and he only takes on about 30-40 new projects a year so if you want a Steve Moore tattoo you better have a great idea and a good chunk of skin.
As for southern Cali-try out http://www.gurutattoo.com/, Aaron does some stuff that is similar to Steve's work. Also Terry at http://www.remingtontattoo.com/ is worth checking out.