JavaTenor

I haven't tried Sachio's omakase yet (and thus, can't comment on the price point), but there's a special "unique" sushi menu provided at the restaurant (not currently on the website, apparently) that contains most of the less-traditional options.

I highly recommend Kabuto A&S, in San Francisco's Richmond district - best sushi I've had in the city. It's located at 5121 Geary, near 15th Avenue. It's a small place, though, and very popular, so be prepared to wait a bit. Kabuto's menu The menu link above doesn't include the chef's special concoctions, which change rather frequently and include some more fusion-y excursions. Everything on the menu, even the simplest of items, is meticulously prepared.