On the LA chowhounds board, I'm always reading about omakase. Are there sushi bars in SD that also offer this option. If so, what is the etiquette for requesting omakase. Also, how is it priced (i.e., is the price given at the time of the request, or does one receive a bill with a mystery amount at the end)? And finally, how much have you paid for omakase in a local SD establishment?