Should the Knicks try to acquire Nash or Monta Ellis?

I like the Nash trade rumors more. He still has a few years left in the tank and is an instant upgrade over Billups. More importantly, trading for him wouldn't hurt our chances at signing a big time free agent in '12 because their his and Billups salary match up. However, we may have to include newly drafted Iman Shumpert to entice them. It is rumored that the Suns br are "in luv" with him. I like it better than Ellis because he is mainly a shoot first off guard.