Just thought I'd point this out...

The Montreal Transport Society (STM) has JUST started (Mar 29th, 2010) their direct bus service from the airport to Berri-UQAM ("Gare d'autocars de Montreal" - Montreal Berri-UQAM bus AND Metro stop) along with 7 other stops (amongst which, Lionel Groulx metro station and Rene-Levesque/Mansfield streets).

Fare is 7$ (payable in Canadian cash in the bus) and the standard/reduced fare cards are also accepted.

The buses are specially outfitted with luggage racks, similar to rental car shuttle buses.

The 24x7 service runs every 20 minutes during peak, 30 minutes off-peak, 60 minutes at night.

More details here: http://www.stm.info/English/info/a-747.htm

and here: http://www.stm.info/English/info/a-747.pdf

HTSC