A little zen, no?
See a pretty thorough tutorial on how this house was built (click on the link that says "photos and plans").
There are also quite cute, more traditional plans at the extensive main site. Their "Little House Plan" (somewhat similar to the house above, and including a loft bed) is supposed to be even cheaper than the $1400 house (!). While no specific dollar amounts were given, it looks like quite an ideal rural, low cost home.