Roger that. Let's say I had the weekend to spend, what are the must see/do things I should put on my list?
Personally, when I visit a new city I like to explore the various neighborhoods so I'll list my favorites.
Chinatown: It's huge, colorful, and you can get a lot of good cheap food.
Little Italy: At night it turns into a hangout for 35 year old Pauly Ds, but there's a lot great restaurants and bars.
Koreatown: Same thing as Chinatown, but with Korean food (duh)
Queen West: This is sort of a fashion district that's great for looking at weird art shops.
Kensington Market: The hippie area of the city. Not sure if you dig that kind of thing, but it's pretty fun.
Tourist Stuff:
Art Gallery of Ontario (AGO): Very cool art museum
Royal Ontario Museum (ROM): Very cool history/natural museum
CN Tower: It's really tall
Yonge and Dundas Square: Sort of a Times Square equivalent. There's a huge mall here if you're into that.
If you're looking for a bar with metal/hardcore clientele try Sneaky Dee's. They regularly host metal shows as well.
Probably more info than you wanted, but I really like my adopted home city.