So far, it seems near impossible to get Oaxacan ingredients, particularly Oaxacan chiles, in Toronto.
Oaxacan drinking chocolate (La Soledad brand) is now available in several different varieties at the La Tortilleria location at Dufferin and Bloor, which is great, because the major Mexican brands, Abuelita and Ibarra, have been deteriorating for some time. La Soledad is also cheap for the quality - 3.75 for a box of 350g (bitter, regular, or without almonds) or 3.75 for a bag of 500g of the regular "almendrado" variety.
Naco Gallery and Cafe on Dundas West also periodically stocks chocolate Mayordomo de Oaxaca, which is very good, and which I use in my moles.
But Oaxacan chiles (chile pasilla de Oaxaca, chilhuacles, onza, etc.) are not at all available. Are other chowhounders aficionados of Oaxacan food, and if so, have you been able to source these chiles?