Thought it might be helpful for other hobbyists to keep a running list of which hotels have free internet in the rooms and/or free wireless in the lobby for those who travel to Montreal also on business. Here's what I can contribute to the best of my recollection:
Hyatt: No wireless, paid connection in rooms
Marriott Chateau Champlain: Free wireless in lobby, paid connection in rooms (although wireless signal is strong enough to connect to on lower level hotel floors)
Loews Hotel Vogue: Free wireless in lobby, paid connection in rooms (wireless signal is not strong enough to connect to on even second level of hotel)
Now let's add to this list!