Thanks everyone for the info. Haz, that ICF web sight looks like a gold mine of info. I'm deffinately going to look into this for my foundation and walls. I will be extremely excited to here how your experience goes with your enclosure.

Thomas, it's starting to make me sick watching you build your house thru your web sight!!! I just love it!!! your frame is beautiful and I love the cantilever But I'm having trouble getting any work done as a result of spending to much time reading these forums!

You are going to have some points where some beams will be coming thru from the inside of the house to the outside. How do you intend to aproach keeping these areas sealed and air tight over time as the timbers shrink. Thanks again, Kevin