can't give you any help on the rates, insurances etc... as I live down in Savannah, which is 230 miles further South and a world away! Rates would differ greatly.
The one thing you will notice here is that most everything revolves around your credit rating - even the car insurance rate you will get!
As you won't have a credit rating when you arrive, things will appear difficult at first.
In our case, we got round it by making friends at the local small town bank, who were very helpful and in the end, we took out a small loan just so that we could pay it back to get some activity on the credit history! A pre-interest paid credit card helped as well (dump it as soon as you can get a real one).
I know you didn't ask about this, but it very often comes up.
Now, to the bike: I had a ST1100 that I wanted to bring with me from England. This bike was 2 years old, meant a lot to me and was exactly the same as the model sold in the states. I was informed that I would have to post a bond with US customs for 2/3 the value of the bike until I could come back with garage bills showing that I had had the bike converted to US spec, even though there was virtually no difference. The only hope around this if your bike (I don't know what model it is) has an EPA sticker already on it to show that it is passed for the states.
Like the immigration business, I think it's just designed to put you off doing it - it certainly worked for me! Shipping it would have been quite reasonable at about $600, I believe.
If you do manage to bring your bike or get another one over here, I envy you. You will be nearer the Georgia mountains than I and there is some lovely riding to be had up there. We frequent a place called "Two Wheels Only" in Suches, GA, which is a lodge and campground only admitting bikers. It's set in the gorgeous piece of land amid running mountain streams and the roads all around are made for bikes. There is a great atmosphere there and the people are really friendly. Just watch out for the hillbilly mountain locals in their trucks.
I think that's all I can help you with for now. Let me know if you have any more questions, and let us know when you get there!