It's going to be a great weekend with very little chance of rain. I know it's not sushi, but I recommend you come out and play with a bunch of us at Jeanne et Gaston, a French restaurant with a Zagat rating of 24 for their food.
While we eat (or perhaps after), we'll play the game of Pétanque - the French cousin of Italian Bocce. It's about hurling metal balls in a big court out back. I built both of them and they are fantastic!
If you've never heard of the game here is a video where I explain how it's played: http://www.youtube.com/watch?v=Iw1_PAnzJdg
Hope to see you there!