http://www.brightsideofthesun.com/2010/ ... nual-trade
If the Suns do let Amare walk and get nothing in return, they will have about $45m on the books going into next season depending on how much Channing Frye decides he might be worth on the open market (he has a player option as well). With the salary cap projected to about around $53m that only gives the Suns about $7m in room to work with which isn't going to be nearly enough to go after any other big name players.
In essence the Suns would be "trading" Amare for a mid-level exception player. This year that included Ariza and Gortat just as way of example.
Seems like the best thing to do would be to trade him along with Jay Rich for expirings rather than just letting him walk...