Raptors need a power forward. Derozan is a waste of cap space, and so is bargnani. We also need pg depth. Hollinger's trade machine won't let me make a raps-bulls deal without both teams going over luxury tax threshold - but this should be fixed once derozan's and gibson's extensions kick in.
Raps Receive: Gibson, Rip Hamilton, Hinrich
Bulls Receive: Derozan, Bargnani

The Raptors get a solid, young defensive and rebounding power forward, along with 2 decent bench pieces.
A Lowry,Ross,Gay,Gibson,Valanciunas core looks good going forward (wit amir,fields,hinrich,rip,acy all as bench pieces)

The Bulls get a solid 2 guard who can attack and help out rose in the backcourt. Bargnani can space the floor as a sixth man and give some shooting when paired with Noah or Boozer.