Recently there was a Silverlight Firestarter event in Redmond:
When you wake on Sept. 17th the year of 2009 you have a smile on your face. Not only did you get the day of for “training”, but the “training” is actually something you’re very interested in. Maybe you haven’t had the chance yet, or you’re looking for additional guidance; but today you’re going on a tour of Silverlight 3, Expression Blend, SketchFlow, the Silverlight Toolkit, RIA Services and XAML Power toys.
Since this event is in the past there is still a way to catch up: Tim Heuer and Mithun posted videos from the event and I highly encourage all interested in Silverlight 3 to look at them.