The buzz on the list serve for the Golden Gate Chapter of the California Rare Fruit Grower's Society is that the Rosanna Raspberry does well in San Francisco.

Raintree Nursery sells them for $6.50.

Here's their description: The sweet, superb flavor of this raspberry from Italy has been compared to candy and generated tremendous excitement. An abundant harvest of big, bright red berries ripens on 5' tall canes in July. In warm climates, prune plants as everbearers, cutting canes a few inches above ground, and they will also set a fall crop. 4"pot. USDA Zones 5-9.

For people in New York state, they have the Royalty Purple Raspberry for $4.95.
Here's their description: The large fruit of this highly vigorous, productive purple raspberry from New York state offers a unique, delicious, sweet flavor and aroma. When ripe, berries turn from red to purple.