If I'm Miami and Howard's back is deemed fine, I'd do that trade in a heart beat - wouldn't hesitate.
Howard and LeBron? Add water...
Howard
Haslem
James
James Jones
Goran Dragic - I'd try to sign him in free agency
A bunch of other players would be lining up to play on that team, you'd fill in the gaps in an off season...
If I'm Orlando, I'd rather have a Bosh / Wade combination than Andrew "I'm a complete head case and I'm made of glass" Bynum.
I'd also rather have a Brook Lopez, Humphries, Brooks plus draft picks deal than Bynum.
And NJ should do that deal as well because they could fill in the Gaps around Deron and Dwight in an off season as well...