I am also in San Francisco. I practice with the FWBO at the San Francisco Buddhist Center. When I abruptly declared myself to be a Buddhist my wife purchased the Idiots Guide to Buddhism an found it helpful. I occasionally attend the San Francisco Zen Center events. Sometimes I go to a few of the Thai and Cambodian Wats in our area as well.
"Beautifully taught is the Lord's Dhamma, immediately apparent, timeless, of the nature of a personal invitation, progressive, to be attained by the wise, each for himself." Anguttara Nikaya V.332