I would definitely take a look at Vince Carter, mostly because he is one of the few players that could be available, and likely will, for the Cavs... He's one of the few players that would available that would fill that role of a legit threat next to LeBron on the wing... He's still putting up great numbers and solid shooting %'s despite his previous injuries and age... His defense is suspect but he is still a passable defender...
I don't question is ability to score or his ability to be a good player, the only thing I question is how good can he be from this point on... He turned 31 in January and considering the guy has had numerous injuries to his ankles, knees and back, I don't have too good of a feeling about that even though he's missed around 13 games the last 4 seasons...
He's a guy I'd definitely take a look at and see what the Nets would be willing to take back, but don't forget he'll still have 3 years and around 48 million left on his contract with a year 4 option worth 18 million... This is part of the reason why he'll probably be so available...
I'd much rather have Richard Jefferson then Carter, but Jefferson doesn't seem like he's a player the Nets would trade away, let along to the Cavaliers...