Ethics in Negotiation

I think that some "dishonesty" is necessary in any negotiation.  After reading about the three schools of bargaining ethics (It's a Game" Poker School",  the "Do the Right Thing Even if it Hurts" Idealist School, and the "What Goes Around Comes Around Pragmatist School, I feel that I mainly subscribe to the "It's a Game" Poker School of bargaining ethics.  I think that there are many elements that are like a game when negotiating.  Bluffing and misleading are integral parts of the "game".  My negotiating strategy is often to withhold information that would give my opponent an advantage over me.  Also as in my previous example in my "good cop, bad cop" post,I feel misleading by giving a little false information is acceptable in a negotiation.  As long as no one gets hurt, I don't see a reason to be totally forthcoming in all parts of a negotiation.