This site http://sailquest.com/market/
has a good listing of Canadian built boats typically on the used market. The values listed may not be valid today but its a great way to compare various models and relative values may be helpful.
And, of course, a localized search on Yachtworld.com is always fun.
Second the recommendation for the C&Cs, CSs, Vikings and would add Ontario Yachts (who built the Vikings and others)