Brooklyn
Orlando
Portland
Washington
Toronto
Brooklyn - cap hell.
Orlando - $7 Million under the cap with Hedo's $12 Million expiring after next season. Used Amnesty Clause on Gilbert Arenas saving them $22 Million in cap space. Far from cap hell.
Portland - $17 Million under the cap with Aldridge, Batum and Matthews on good value contracts. Used Amnesty on Brandon Roy giving them their cap space. Far from cap hell.
Washington - Yes, $5 million over the cap, even after using their Amnesty on Blatche. But they have $21 million in expiring contracts coming off the books after next season and Wall still on his rookie scale. Even Nene at $13 million x 3 seasons could easily be traded. Far from cap hell.
Toronto - $5 Million over the cap but not locked in to any long term contracts and all of their players are tradable if for nothing more than cap space. Far from cap hell.
If not for the Amnesty Clause, 3 of the 4 teams you just listed WOULD be in cap hell.