The show is called, Capital Comic Book Convention. It was so popular they've expanded the dealer space, the admission is $6 (up from $5 and I hope they don't continue to increase the price for attendees). In my monthly show that I setup at, there were many of the dealers there and all of them told me it was a great event. For me, I won't ever have the capability of doing a bigger show (at least not in the foreseeable future), so this is nice that I will be able to setup at a larger venue in addition to my monthly show which is very cost effective!
The location is right downtown Ottawa (Ottawa Marriot), try to convince your family to visit the capital for the weekend, there's loads to do!