Check out otherpower.com to build your own.

They have seminars to teach you how.  These folks take the practical approach gleaned from actually powering their own homes and businesses off the grid.

And they have discussion forums to ask questions.

My current design features a system that powers a heat pump for home heating and refridgeration directly from the windmill power shaft, as well as an electric generator, water pump, and air compressor.  All mounted at the base of the wind tower, rather than way up in the air.

If you've already got a grid connection, it would be a better use of your money to join a wind energy co-op than buy a small turbine. Generally, you'd reckon on a small turbine costing about 1/3 of the total you'd need to put together a system.

Large turbines are usually placed in better wind regimes than you can manage on your property. Their cost per kWh is much lower than small turbines, too.

But then, I would say that, being a director of WindShare ...

But look out for a change in micro-wind economics.  The simpler is better design philosophy may yield some breakthroughs, like heat pumps (for heating and cooling)run directly off the wind mill power shaft.  

It's kind of a throwback to how wind power started, as a means for running big grinding wheels to grind grain.  The power came into the base of the installation as mechanical power, rather than being converted to electricity way up in the air.

I like the coop idea a lot, also would like to see a renewable energy cooperative lease electric cars to it's members and have biofuel from the waste stream projects that use wind and solar for the energy to process the waste.

Maybe even trade the fertilizer byproduct to farmer/gardener coop members in return for waste input to the system.

Efforts like this are under way already in a progressive city a few hours south of here,  based on the housing, food, and farm coops.

Now to revive the old utility coop legal structures!  

One possible  antidote to the provision in the new energy bill that lets corporate crooking like that planned at the secret white house energy meetings around the time of the California energy crisis, (created by market manipulators from Enron shutting down power plants to steal "grandma's pension"), take over local utilities en masse.

I did some research on wind power.  It seems in order for it to be productive, the area for the turbines need to have at least 9 mph winds on a daily basis.  It won't work if you have 2 mph winds one day and 60 mph winds the next.  
Lilly

Condolences if you are related to Rodney, he was a truly great man, RIP.

Actually that would work quite well, a Jacobs Wind Electric plant lasted in Antarctica for decades.  A legendary wind machine designed in the 30s and built in Minnesota.

It regularly endured winds way past 60mph.  And the feathering blade design allowed it to generate power in 60mph plus winds.