I hate violating the etiquette of posting trade ideas as fan-posts but seeing as I have no credible source I have to use this as a facet for this idea.
It is no secret that David Lee has been disillusioned by the Knicks organization for the past few years whilst they attempted to gather cap-space for this FA, and no one can blame him for wanting to be with a contender during those times. His visits to the T-Wolves actually went well, apparently, and I think he is going to drift away from the Knicks over the next few days. You may be losing him without anything in return, but how would feel about a sign and trade for Spurs point guard, Tony Parker?
Tony's name has been linked up with the Knicks since the playoffs and I think that there is a plausible reason for both teams to make this trade. Lee is a young, talented front-court scorer who can help Tim Duncan as well as bring youth that the Spurs desperately want and need. With Hill and Roger Mason in the back-court, the Spurs stay solid and can improve the front-court by leaps and bounds through this trade.
The Knicks want a point guard to compliment their newly acquired PF, Amar'e Stoudemire and I think that with Tony Parker as an option on offense, STAT won't be double teamed as much. Your back-court is shored up and you really improve the balance of your team for any upcoming FA's (Which in my opinion was the biggest thing hindering you guys this year.), meaning that you have building blocks already in place. With a good draft and this trade, you could be in contention for titles very soon.