Welcome aboard..... This is really dumb coming from a fellow Canadian, and Ontarian to boot. Which part on ON. is considered central? I'm from SW ON, but am unsure which would be considered Central ON.
As Ruth already mentioned, the reptiles shows in Missisauga are wonderful. I've never been to the Ottawa ones, as it's quite the drive from the London area. There's a bunch of us ON. breeders, maybe you'll luck out as I did when I first started, and find one that you can actually go to their home and pick your snake ( which is dangerous I might add LOL.... many a time, I'd go to pick up one, come home with 3 or 4 LOL) I always liked that part in picking my snakes, being able to see them in their normal environment as opposed to at shows where they may be a little off colour from stress, etc. ( no I'm not discouraging show purchases, just saying that I lucked out and most of my breeders were handpicked)
Anyways, welcome again. Do check the googlemap to see who may be close to you
