These are some videos that might help in the value proposition presentation..
It is talking about how to creat a value proposition..

[[ http://www.youtube.com/watch?v=P4JAbsYq8jE]]
[[ http://www.youtube.com/watch?v=RIArAeq49Es]]

This value proposition for Home and Land..
I think it is a good one..

http://www.youtube.com/watch?v=qfdNRglSL6g