I've done a bit of riding in Toronto and the traffic is killer... I don't plan on doing an out-and-back of the ride, likely stay over a night at least and maybe do the ride home at night.
I was looking at the map and like the Mississauga Rd. idea, I'm not averse to the traffic but I might just head to the port credit GO station if the time works out. I was thinking of coming across south of Milton and picking up Burnhamthorpe Road and take that to Mississauge, I also noticed the Collegeway seemed to be a nice parallel road... I'm sure I can follow parallel to Lakeshore on side streets until the paved trail starts near mimico, I know my way from there into the city, I've just never cycled in Mississauga before.
Thanks for the links and pointers.