Good luck trying to get into the French Laundry!
First, they open reservations at 10:00 AM 60 days out, and are sold out within minutes.
Second, it's closed for renovations.
We ate at La Toque, in Rutherford. It was fabulous!! Dinner only, 5 nights a week. Would go back in a heartbeat.
Also Martini House in St Helena is great. And Don Giovanni, and Bistro Geanty, and the restaurant at Domaine Chandon . . . we call it Gourmet Gulch. You certainly won't go hungry. We certainly haven't and have the waistlines to prove it.
Where in the Valley do you want to stay? Are you near a library? You can go to the travel section and check out some good books, they should have hotel info. Or go to the local AAA and get a Northern Calif. tour guide.
Bon Voyage!