Yep, we had a pretty good time, that's for sure. The weather cooperated, which is a hell of a lot more than I could say for the first few days I was in Ottawa. I came in from YYC (after a Dash 8 flight from YEG) on an AC A319. In YYC, I've seen at least one 321. Sorry, I don't have the regs - I don't have my daytimer with me, which is where I wrote them down!
In addition to what Yow said, I did, however, see the next day before my flight to YVR, a 146 in red Jazz markings, probably C-GRNZ. It was also probably bound for YHZ.
BTW, the 762 I went on for Flight 139 YOW-YVR had the fin # 609, so it had the registration as C-GAUY - not the Gimli Glider (C-GAUN), but a 762, nonetheless. It was a pretty good flight - the flight arrived in YVR about 24 minutes early and even the food was far better (basically a chicken that tasted like it had honey on it and a surprisingly crispy salad) than the YYC-YOW flight, where part of the breakfast was so disgusting that I don't think even a dog would eat it!! Fortunately, I had no problems in dealing with AC staff both on and off the flights. In fact, they were even better than what I encountered last year before 9/11! I'm currently in Vancouver, so I'll be back in YEG on Tuesday May 28th.