There is a mate down here in CHCH that built somthing similar to this page http://www.windstuffnow.com/main/microwave...d_generator.htm

It puts out close to 40A and is mounted not far above a house roof in the city. You can build things using the motor from a Gentle Annie washing Machine and install prop's or mount a motor on and old shop sign that spins around, but they do tend to blow apart if not strengthend.

This can be a cheaper, but longer and frustrating. But very much intertaining and a learning curve.

Matt - Yobbo Wireless

PS: He also built something simliar for someone with a water wheel running a Gentle Annie motor 110V over 200M of cable to a transformer to 12V to charge a batt in the middle of the Southern Alps. Worked very well and it was very cheap.