Sounds cool?! Check out:
However
i suggest you also look elsewhere. Anything on "sustainable building" will
usually make an interesting read. If you really want to go the DIY/cheap
method i suggest NOT hiring any companies but reading up a lot so you find
what out what you like and what will work for you. You can't go wrong by
ordering Mike Oehler's classic: 'The $50 & Up Underground House Book'
and by studying material on Cob and Strawbale building.
The
best place to order Oehler's book is:
http://www.undergroundhousing.com/
Over the years i've looked into this topic quite a lot, so perhaps i will add more to this article in the future.