I just got my first batch of 4x5 Portra back from ABC Photocolour in Vancouver... 10 sheets processed contact printed for proofs and shipped expressfor CDN$48. (now if only I had given them something worth their time to really make a fine print.) Their staff has been very helpful in emails and over the phone. They especially take a great deal of care packing and shipping. They are definitely on my preferred list of Canadian vendors of film products.
They were originally set up by a number of pro photographers (4 IIRC) who wanted a top grade lab to do their wedding, portrait and commercial photofinishing. I've used them whenever I wanted pro quality work for a very long time (hint: when I started, Vericolour II was the newest thing).
They were my lab of choice too, since there was nothing in Kamloops while I was there. Always found them friendly and helpful, both in person and on the phone.