I was downtown Toronto today and stopped in at best buy and futureshop. Best buy had a huge line and people were saying 70 units for that store. Futureshop had about 6-10 people waiting outside and they wouldn't find out how many actual units were available until store closing. This was at 2pm.
Personally, I am getting an Xbox 360 from futureshop tomorrow. There was a Microsoft sales rep in the store hyping up a one-day promo tomorrow: $450 CAD+tax which includes 4 games (ridge racer 6, gears of war, ghost recon and something else). 1 wireless controller + 20GB drive. I'll snag that while its available and pickup a PS3 at a later time.