On my wheat grinding post I was asked where to get a wheat grinder and wheat. As you know I have borrowed my Mother-in-Laws but you can buy your own. Fun with food Storage has a list of prices and different styles. They are around 200-300 dollars. You can also get a grinding attachment if you have a Kitchen Aid mixer. I have never tried one of those and don't know how well they work.
As for the wheat I get mine through our Church Cannery . They are located all over the United States and are open to anyone who would like to go. You can go and can your own food, or buy the bulk bags. The food can be canned in #10 cans or Mylar bags. I have used both and they are both great. Here is a Price Sheet for all the food. The church makes no money and sells it for cost. They just want us all to be prepared to take care of ourselves in the event of a job loss, natural disaster, or heaven forbid a food shortage.
I also came across a blog post of a Non-Mormon's experience at the cannery with her friend.
I also found this interesting blog called Food Democracy Blog. It is where I got the beautiful picture of wheat from above.
Hope this helps answer questions on grinding your own wheat. It feels good to do, plus it is so good for you.