My two favorite restaurants in Napa, CA:
Bouchon and Bistro Jeanty.
Both amazing French restaurants. The chef at Bouchon just released a cookbook which I'm super excited to get. In fact, I think I've been more in love with French food the past few months mostly because these two places are so great. And the prices were very reasonable - $30 or so for dinner. The owner of Bouchon also owns The French Laundry, also in Napa, which is considered to be the best restaurant in the country. It's won awards every year for like the past 15 years. It's a tasting menu for $250/plate, though.