He wrote a series in the NYT on math that was awesome, and he'll speaking at Town Hall on Oct 10 - should be great. Maybe we should see if he can do an assembly that Tuesday.
Part 5 (with links to the other four parts) of a great list of suggestions for standards based grading. As you can see, everyone has their own take on how to do SBG.
It's funny, because this is pretty much exactly the order than I stumbled into SBG. They're all math and science teachers, but they have some great general insights.