Regarding Wade:
He's a winner. He's a young guard - who has played point, which, in my opinion, is where he belongs. He's on a wildly successful team, and is a key element to it.
If New Orleans offered Baron Davis and Jamal Magloire for Wade, would Miami take it? NO. That's TWO ALL-STARS! They wouldn't take it because of Davis's back.
If Phoenix offered Nash and Marion? That would be tempting - and for sure, *I* would do it - but only if Miami is playing for this year only. Wade has a lot more years left than Nash.
Point guards are valuable, and successful young point guards are incredibly valuable. A successful, young, team-oriented, defensive-minded, primary-option capable point guard isn't going ANYWHERE.
Wade is the hardest player to justify on my list, since Miami needs some depth, and obviously, they might be able to get a good deal of it by trading Wade. (Parker, Barry, and Rose for Wade? Just for the depth, Miami would have to think seriously about it.) But due to the fact that O'Neal apparently likes Wade, he's essentially untouchable.