If you have a Santa Maria you are covered for Tri Tip.
You might consider a gravity feed Limo model from Southern Q Smokers. Unattended cooking, takes full pans, thrifty on smoking wood which I know is harder to get on the left coast. Best of all, it's well with your price range, even shipped to California.
Over 40 GCs on Southern Q in 2013, so you know it will perform.
Disclaimer: My team is sponsored by Southern Q, so I am undoubtedly a bit biased. ;)