McMaster-Carr is a great source for these sort of hard to find items. They carry insulated, non-insulated, and two wire insulated ferrules, and in fact I ordered these exact items a couple of weeks ago. www.mcmaster.com
According to the McMaster-Carr 'Ordering Products' help page, they ship to Canada, and in fact will ship 'ground' at ground service rates, with _next day_ delivery to much of Canada.
[This message has been edited by winnie (edited 05-04-2005).]