There are some nice places to go in the Church and Wellesley area....
Otherwise it really depends on what you want to do (after the hookahs, of course). Are you into clubs or do you prefer pubs? Live music? Food?
If you could provide me with a little more info I could better direct you. In the meantime check out these two links...
Now Magazine
Eye Weekly
Also this website for the more generic
Toronto.com