There are many, many sushi places in London, for a start. A friend of Kathryn is starting a sushi preparation teaching business. Or something like that. Maybe it's her spare time...

I feel the regrettable need to direct you to the wikipedia entry for YO! Sushi (http://en.wikipedia.org/wiki/YO!_Sushi).

Tesco do sushi, next to sandwiches, and