So I quit my job to focus on my startup...
plinkplonk: "Who can recommend good books/articles on negotiation?"The best book on negotiation, bar none, is "Bargaining for Advantage : Negotiation Strategies for Reasonable People" By Richard Shell. 
http://www.amazon.com/Bargaining-Advantage-Negotiation-Strat...
(looks like it is out of print, but used copies seem cheap enough)