Topiary have great steaks and other. Pretty good wine list, some are even rare vintages. I just find that they over cook the vegetables sometimes, other wise it is a very popular business restaurant for important clients as well. Classy yet relaxed atmophere. Zorro's is condidered to be the best all-round steak house in the area. pretty good sized chunks of meat too.
If you don't mind driving 10 to 15 ninutes tops down the 427, the Chop House on the Queensway is also excellent. And of course as has been mentioned there is always The Keg on Airport Rd. This Keg tends to be very busy on normal days and especially if there are any trade shows or major functions in the area, so be prepared to wait at the bar for a bit.