French Laundry's in Yountville (Napa), about 60 miles north of SF.
Reservations are required up to two months ahead. No walk-ins accepted. BUT you can call (email??) and have your name put on a waitlist.
Since I have family in SF, I've never stayed in a hotel. But do you have an Entertainment Book? Would you be able to use the $30 rebate? Or there's at least a $10 off promo code I read about somewhere.
I just checked the bidding-help sites. It looks like there are 4*'s going for $75-$85 on Priceline.