I outlined the Amar'e to Minny trade before, which would basically be Amar'e for Pekovic and Beasley.
For Melo I think you have to make a move for Kobe. Lakers benefit they get the potential and glitz and flash Melo brings while Knicks get a proven Winner and an All-Time great with a lot of game left in him. I don't expect him to come in and drop 30 for the next 3 years, but I think the contrast between Lin's up and coming by-the-balls enthusiasm and Kobe's experience plus Pekovic to bang down low, with Tyson Chandler as center? That's a team that will contend for the next 3 years guaranteed and possibly longer.
Jordan didn't win his first Championship until he was 30. Kobe is 33 and in impressive fitness.
Tyson Chandler, Pekovic, Fields, Kobe, Lin; Bease on the bench with JR.