Didn't Camby already sign an extension, like a couple months back? Something like two year, $20M?
I had been pining for Marcus, working under the assumption that they were likely going to put Perk quietly on the trading block (not going to happen now that he's hurt).
EDIT: I do hope that if and when 'Sheed decides to retire, he'd be open to coming back mid-season a la PJ Brown. Give him some time to heal, and a month or two to play himself into shape, and I could see him still being able to make a solid contribution to next years' squad.