How about this trade?
To Boston: Samuel Dalembert and Donte Greene
To Sacramento: Rasheed Wallace and Nate Robinson (S/T) on a 1 year, $5.5MM contract
Not sure if cap rules allow to happen, but Sacramento could use Robinson.
In reality, I see Dalembert as a one year rental for Sacramento so they can develop Cousins more slowly with Thompson being their primary starter / Landry their 6th man.