Ken, you live in Wudaokou? I'm guessing maybe you work around Zhongguancun in the tech area? I'm at Beishida (well in Dalian for the next five weeks).
I haven't had good sushi in Beijing, only been to the all you can eat places (which aren't bad at all), so I'd be up for making the long trek to Blue Castle when I get back. Shoot me a PM.
Moondog, let me know next month when you have a chance late next month and maybe the three of us can go...