[Debacle of Mass Eruption.]

I just got my jet black 335i about a month ago and i'm not sure about where to take it for service, besides the Dealer. A trustworthy garage is a huge priority for me. A man needs a mechanic, and a barber, he can trust. I'm a working student, so money is kinda tight. (No mommy and daddy money here...)
Also, i'm trying to find a parts shop where the people are pretty knowledgeable about BMW mods and improvements. I knew of a tuner shop in San Jose, next to California Wheels on Alum Rock, but they closed a couple years back.
I'm a muscle car guy, so I don't really know where to start when it comes to improving my BMW, but i'm hoping to find some folks that are generous enough to share their knowledge.

THANKS