There are tons of things to do in Toronto, here are a few websites for you to check out
http://www.seetorontonow.com/Visitor...tractions.aspx

http://www.toronto.hm/attractions.html

You may be interested in Casa Loma, the CN Tower, Black Creek Pioneer Village, the Zoo, etc. Of course no visit to Toronto would be complete without a kilt night with the SOKS.

Let us know closer to the day where you'll be staying and I'm sure we can figure something out.