Isn't Bynum a BYC player? Wouldn't more have to go Toronto's way than just Bynum, salary cap speaking wise? Something like Morrison and Farmar or Walton and Brown?
Bynum + Morrison + Farmer or Brown
or
Bynum + Morrison + Mbenga + Powell
Those seem to be the two most straight forward trade ideas. Maybe combine the two and get the Raptors to throw in Rasho Nesterovic. Give the Lakers a more physical center. A different type of player to throw into the game when necessary.
Edit: I like this trade for the Lakers
Bynum + Morrison + Vujacic + Farmer for Bosh + Jack + Rasho.
The Lakers get their primary backup point guard and future replacement for Fisher. They get Bosh. And they get Rasho's big bodied self as a fourth big. The Lakers were already using Shannon Brown as the backup SG for a good chunk of the season earlier this year so their wing rotation won't be put out.