Need info on Wind Gen system

To my mind Adam, there is contradiction in your statement.
At the very least you want to lower you current electric utilities power bill by half, but yet, you want to utilize a more expensive and less reliable way of obtaining that goal.
I'll take it that the 800 kWh is each month?
At the national average of $0.09 per kWh that would be $72.00 a month or half of that which is $36.00

If you can pull it off you will have $36 x 12 = $432 a year X how many years do you expect to pay your electric bill? The rest off you life? I will guess your a young man and say at least 45 years of paying an electric bill. So now we have a grand total of $19,440.00

Now ask the questions, "what wind generator could I install for this amount that would achieve this goal?" 
"Will it and the inverter and all last 45 years without additional cost?" (and thats just to break even!)

There is another way. It would have the potential of being one the hardest things you have ever had to do in your entire life. Its a challenge. One that will test you ever step of the way. Its living without electric utilities. People did it for thousands of years you know. Electric utilities are less than 100 years old! But if you just don't see yourself as that kind of man... I guess I understand.

Would you believe that I have experienced people that expected me to feel ashamed of the fact that I lived without electricity? The same is true of people that thought there was a law against it. Honest to God.

We utilize PV now, not because of any of those reasons above. We use about 40 kWh a month worst case. Thats less than one lighted billboard along the I-95 corridor, assuming two 400 watt MH fixtures burning 10 hours a night for a month.