If you like micro brewery beers, I would suggest going to a place called C'Est What... its on the SE corner of Front and Church (and yes it is downtown)... they have something like 21 different micro brewery beers on tap
...
you should also try a beer call SteamWhistle... its pretty good...
Some touristy things to do include:
1) Eaton's Center (big shopping mall)
2) Skydome (where the BlueJays and the Argo's play)
3)AirCanada Center (where the Maple Leafs and the Raptors play), they have their own brewery inside as well...
4) CN Tower (worlds tallest free standing structure) and beside the skydome
5) Try walking along Queen St.... if you like people watching and listening to live bands in small bars...
If you're traveling with kids or family, try the Ontario Science Center (not really downtown though), Casa Loma (a famous castle built in Toronto)...
Actaully try going to
Toronto's own website They have plenty of things in there that you can look at... if you have any questions about T.O. let me know and I'll try to answer them for ya...