People do not like to be sold to, but they LOVE to buy! That is the idea behind the process we developed at Garden Concepts. I recently put together and posted a free book based on our 10 Step Design Process. I know you will find something you can use in it.
Our system was developed with residential design-build in mind, but there is also good info for the design-only office. Smaller offices will benefit the most.
You can download it here: http://www.aaldweb.com/TenStep/Tenstepebook.html
You may have listened to the teleseminar/podcast with Chris Heiler. If you missed that, you can download it here: http://tinyurl.com/pjzo7b
If you like what you read, you will probably want to buy the Document Package described here: http://www.aaldweb.com/TenStep/TenstepDocs.html