To those people I connected with at Cupcake Camp today, it was a pleasure to meet you!
I promised a link to the recipe for the black sesame cupcakes and here it is, via the Delicious Coma food blog. In Toronto, roasted black sesame seeds and sesame seed grinders can be found at the marvelous P.A.T. Central at Bloor and Manning.
Update: here's my full write-up about the day.