According to ESPN Rumor Central, Jeff Green is available and they are looking for a center. They were saying Varejao and Dalembert weren't enough to get him, but would Kaman? 

Green is more of a hybrid 3/4, but he would be a solid addition, he's a good player and a great person. And he's going to be a restricted FA. So they could wait to try to get him (since OK can't afford him allegedly) or make a trade now. Since I'm at work, the darn firewalls are blocking the trade machine, so if someone wants to put something out there before I can later, take a look.