I'm gonna be there some time next month for business. And I'll probably be there almost a whole week. What's worth hitting up? Sweet bars? Awesome food spots? Spots with a stellar craft beer selection are a plus. Or places with some live music. Or places with pool tables and other typical bar games.
Charcut is supposed to be amazing food, although I haven't been personally:
http://www.charcut.com/
Craft is a decent brew pub, although I'm not generally thrilled with their selection:
Craft Beer Market
National is similar, I think there's a few around the city:
Home :: NTNL
Saltlik is good, only been to the one in Banff though:
Saltlik, A Rare Steakhouse
Wurst is another good beer hall, had really good brunch there this summer:
http://wurst.ca/
Basically, there's a shit ton of bars and restaurants in the Stephen Avenue area, and also 17th Avenue just South of downtown.
Downtown Calgary :: a source of information about events, attractions, shopping and restaurants in the downtown core
Discover Calgary Entertainment District
Those are the two big areas to hit up with a high concentration of that sort of thing. Personally I tend to not spend a lot of time in Calgary so I can't give too much specific advice, generally I'm just pulling over to pick up a friend and then heading onward to the mountains. Lake Louise, Sunshine, and Nakiska will all likely be open by mid November if you want to hit up the mountains for some skiing/boarding, but depending on snowfall the conditions probably won't be good and only a small portion of them will be open.
Oh, forgot The Living Room:
CONTACT US - The Living Room Restaurant. Had dinner with my girlfriend there this summer, and it was an excellent meal. But not cheap! Although nothing in Calgary is cheap, but by comparison to San Fran it might not be too bad, and the loonie is down to 88 cents these days.