Last night, while reading these messages, I realized that no one touched on some of the real food and dining treasures of San Francisco. Everyone has been concentrating on the more typical tourist spots.
Check out Clement Street, in the Richmond Districe, where there are more restaurants than you can imagine. It's a nice level aprt of town - great for walking for those not used tothe hills - and entertain yourself with numerous cafes and and chinese, thai, japanese restaurants.
Move into the sunny Mission District, oh, from about 16th street out, and you'll find yourself in the heart of the Latino area. Wonderful culture, and some truly great, small restaurants

. Enjoy the hustle and bustle of the place on a weekend day. Easy to get to with a simple street car ride from down town. The Mission area is also nice and flat
Explore Chinatown - get some Dim Sum (I can recommend some great Dim Sum places) and check out another cultural aspect of the city.
shel