Your best--and probably only--bet in the area is Pond's in Guelph(519 823-5610). Failing that, try Burlington Camera(905 632-7722). Local processing isn't especially good, inexpensive, or fast. The best E-6 processing going now is Toronto Image Works(1-888-867-2252) in downtown Toronto with in by 11 out by 4 service M-F.
(Perhaps the mods could fast track this one?)