Hi, I thought you might be interested in my Marin, School, Community and Home Seminar that I have coming up in a week. Many folks attend who are new to Marin.
Here is the link for more info:
There are 2 upcoming dates: 11/15 (in Mill Valley) and 11/21 (in SF)
As I'm a mom myself of 2 young children, I've helped a number of families find the right fit. As far as the specifics of your looking for great schools, your best bet is to look at the test scores, talk to other parents and then narrow down the area that you'd like. But you also have to look at what home price range you can afford.
I also suggest joining a mothers group and asking there. You will get wonderful unbiased opinions on schools, neighborhoods and more. There is a moms club just in novato: The Novato Mothers Club. I'm a member myself.
Feel free to call/email me with any questions, and hope you can make my next seminar.