Let me first say that San Francisco is one of the ultimate destinations for anyone that has even a remote interest in food and/or wine. The beauty of a city like this, similar to many of the great cities in the world, is the walkability to so many incredible places to eat and drink.
You could spend the rest of your life exploring this city, and another lifetime figuring out how to pay for some of it. That said, this post concentrates on places that were walking distance from my hotel, The Palace on Market and Montgomery. It's a great hotel, but for the money I think I would have liked one of the Westin hotels better, but what the heck.
The other thing that I did (and highly recommend) is I purchased an online subscription from Zagat's which was really spot on. Just remember, normal humans eat at places from 20-25. Anything much higher than that, and you need a second mortgage. Not that it might not be worth it on occasion.
The 7/11 on Market street. Pack of crackers and a diet coke. What can I say, I got there late and I was tired. More to come.