check out the Canadian Brewers group here. There is a thread about online sources. I live in Edmonton and we have a really good LHBS that has quite a lot and organizes a bulk buy every year.
Primary: Kolsch; English Summer
Kegged Aging: Oktoberfest
Kegged Ready: Liberty Lager; Real Ale
Bottled Ready: English Barleywine '12; English Barleywine '14; Wee Heavy; Magpie Rye