If you want to get good at negotiation, you could go to your library and check out every book on the subject, then practice by doing low-risk negotiations like bartering for a car. (Be sure you read Getting to Yes and The McGraw-Hill 36 hour negotiation course. Oh, and "The Seven Habits of Highly Effective People" and anything by Dale Carnegie).
Or, if you want the super-cliff notes, you could read this article by Eric Sink.
Yeah, it's that good.
Schedule and Events
March 26-29, 2012, Software Test Professionals Conference, New Orleans
July, 14-15, 2012 - Test Coach Camp, San Jose, California
July, 16-18, 2012 - Conference for the Association for Software Testing (CAST 2012), San Jose, California
August 2012+ - At Liberty; available. Contact me by email: Matt.Heusser@gmail.com