check out
www.hotelgodin.com
brand new hotel smack-dab in the middle of downtown. it's fucking gorgeous and hi-tech. my girl's dad did all the networking/computer systems there. if you know anything about montreal's night scene, this hotel is owned by the same people who own buona notte.
there's also a W that opened in Old Montreal (5 mins from downtown). apparently it's also luxurious.