I am heading to Sonoma and Napa with two of my closest girlfriends in a couple weeks. We fly into SFO on Friday morning and will be spending 3 nights in Sonoma, 1 night in Napa and then our last night back in San Fran. We are running a half marathon between Sonoma and Napa on Sunday, but otherwise haven't made plans. I've been to Sonoma once before and loved it, this is the first time for the other two. We are interested in good food and wines, as well as some sparkling wines. What are some great spots that shouldn't be missed?