How much money and effort does it take to convert a typical 1990's home to a nearly zero energy home?

That was the goal of this project...until I sold the house! Luckily for me, the new owner found my blog and wants to take the project (and the blog!) forward. Here's the new link to the blog: Darn Near Zero Energy Home blog. The old info is there, but John's ready to add to it and take it forward. Go John!