Yeah, I'd be down for a seminar up there any time. I've never met Cartmell, but a friend of mine studied with him for a time and loved every minute of it. He sounds like a practical guy, so I'd bet any seminar he hosts will have lots of good info. I could just about ride a bike to his studio too, so that helps.
And of course I'd love to get my lazy self up to your class soon as well.