If you happen to be heading towards San Francisco/Oakland, California, then Jay van Arsdale teaches a great, and very affordable (like $35/semester) Saturday class at Laney Community College in Oakland. I took classes with him for 2 years, and would still be if I hadn't moved across the country. Chris' classes (see above) are super great as well. And if you're in Ontario, I'm pretty sure there's a fairly well known Japanese-trained timber framer somewhere in Ontario. I forget his name though (Chris?? Works with Ian??).

Brad