Clubstereo: http://www.clubstereo.com - Montreal's home of house. very chick, glam mostly gay crowd. Easily one the the best vibes in the city for a club that large. Geared towards the older demographic(25-30). Residents include:
Aria: http:www.arianightclub.com - Canada's newest afterhours club with a capacity of 3000 in two large rooms. Wide array of music every friday and sat. Styles range from Disco, House, Trance, Techno & Hip Hop.