to the OP: can we get a real example of a sales proposal you've written recently that was effective and fits into what you're ...erm, proposing?
You can sign up for a free Mimiran account (http://www.mimiran.com/pricing-signup/), which includes a couple of sample proposals which are based on real winning proposals.
You can also check out the http://www.mimiran.com/proposals/ section of the website, which has a number of posts on writing compelling proposals.
Check them out and see if you agree with the ideas we are, ummm, proposing. ;-)