The Knicks already have $60M in committed salary next year. Let's assume the CBA rules stay about the same. The best they could offer him outright would be an MLE (gee, think we could beat that?) Or, they could try to put together a sign-and-trade. Let's assume they want to do a sign-and-trade for $8M. They'd have to send us at least $6.3M back in that scenario. Assuming that they're not going to send us Amare or Carmelo, and that we wouldn't accept a really expensive one-year rental of Billups, there's not much left. The smallest deal that could possibly work and have any player value in it for us would be Landry Fields, Turiaf, and Balkman. That would allow us to get one year of Landry Fields - without the ability to extend him or make him a restricted free agent - and two guys who are useless to us.
I'm not worried about the Knicks getting Dalembert unless the new CBA says "the Knicks get to spend as much money as they want".