How do you write a business plan for a unique Web 2.0

p>We are working full tilt on a business plan to present to investors at the moment and we’re struggling with what to actually outline and delineate in the financial sections. There are really no models to follow as this is a unique idea. Does anyone have any information or links to resources that have pointed information and that breakdown processes, etc. for establishing convincing presentations in similar circumstances?

We have a number of angel investors that are already extremely interested in funding us, but they need to see things presented in an easy to understand and consume manner as they have zero background in our area.