Here is a link to a nice YouTube channel I just found. The guy sells plans too - worth a visit
http://www.thewindmillman.co.uk/Here's the description from his site
Build this mill the completed mill with furling tail,12V - 48V up to 2.5KW see ebay under "wind turbine build plans" look for thewindmillman , I have been getting 300 + questions a week on the build of these mills and it was getting too much to answer them all so I now have plans made up I will send the plans on to make this turbine and a wooden blades set, see ebay type in wind turbine build plans. I also have the "how to build a cheap wind mill" with other details on treadmill motor and AC and DC motor wind mill building, through to stepper motor, DC brushless motor, small and large motors and DC motor mills instruction for sale in addition with the PVC blade builder from high torque to high speed blade instruction for
these are great for the beginer and advanced builder alike email me form any of my videos these plans are now in high demand and have had to increase the price to cover extra input material i have prepaired and is now added in
cheers andy
