Well, was really just using Bosh as a stand-in for one of the guys who will be in most demand next summer. I think they're more likely to pursue Boozer (who ought to be a little cheaper). Beasley, I'm not sure he CAN'T play SF in the league; he's probably expendable under a lot of scenarios, and I don't see them making a trade until he can show people he's got his head screwed on right.
Wonder if they'd have the cash to re-sign Wade, give Boozer $10M/yr, and make an outsized offer to Rondo? Wade'll be what, about $20M? $10M - $12M for Boozer would leave $12- $14M to offer Rondo (assuming they can't get the $44M number any bigger). Danny might match at that price; he might not.
I can't see a Wade/LeBron combo, whether it would be complementary or not. Can't see either of those guys willing to be take the Pippen role, not at this point in their careers; they're both alpha dogs who should be leading their own teams.