I've just been working through Lee McIntyre's Inside Out, Upside Down training and one of the techniques he recommends is called 'The JV Scalpel'.
It's basically a technique for getting JV partners to work with you if you're an unknown or newbie with little leverage in a deal.
Here's a link to Lee's blog post which explains how it works, but it's a tremendous technique:
http://www.lee-mcintyre.com/blog/how...0-from-scratch
hope it's useful ... it puts a whole new perspective on creating JV partnerships.