i've seen earth balance in toronto, and orangeville, but not in brampton. and i've been looking for it in brampton for a year now. i think i'm going to have another go at bugging fortinos to stock it.
earth balance is really really REALLY nice stuff- my omni bf reports that its better than real butter, so if you see it round here, stock up (and let me know where you found it too!).
if you do decide to go further afield to get it (definately worth the trip, if you ask me) .... in orangeville its available in harmony wholefoods market, and in toronto its all over the place- the big carrot definately has it (the big carrot has loads of other stuff too, and is generally great in my books). when i'm in the area of orangeville or toronto i make a point to stock up with 4 or 5 tubs of it.
the only other margarine i've found round here thats even close to vegan is some of the fleishmanns margarine (comes in two little tubs joined together by a cardboard box) which is available in every supermarket, and which i think would be vegan, if it didn't have vitamin d3 in it... which is sourced from fish or sheeps wool grease (lanolin) i beleive. i used fleishmanns ages ago before i clued into the d3 thing, and have to report that it tastes pretty insipid anyway, so i'd probably not bother with it (fish and sheep aside).
good luck!