I read this book, and in August 2005 built a floating 10x12' shed housing a 12kw generator on a 12'x20' barge floating on 34 plastic 55 gallon drums using the methods described in this book. I bought those drums for $11 a piece, and found out later they can be had for $8 or maybe even for free. Yeah, the information may be old, but it's still good. It's a way to get yourself out on the water for pennies on the dollar of what you'd have to pay to buy a used commercially built houseboat, and it'll be new and things inside it will work, and not need constant fixing. I had the barge itself built in 3 days, helped mostly by an unruley 12 year old. It could have easily been 36 x 12' and had a nice little house on it. One caveat: You won't be able to insure a craft built using this method. Even if you don't build using the barrel raft method, there's lots of other good information in the book about houseboats, and I like the Jimmy Buffetesque attitude that the author seems to have.