If you want a 10 step process for discussing money with the client - in a way that is not embarassing, and in fact builds client relationship, download the short whitepaper.

If you're able to read a book on selling not aimed at lawyers without expressing the words "but this isn't written for lawyers"  I suggest that you read this book.  It's a very pragmatic book on the "people side" of selling, which will give you a huge array of tips and techniques that work for partners too.  Your client is the same person who buys other products and servcies.  They don't change when talking to you.