My husband and I are the proud parents of two adopted children. Our son and daughter, now 33 and 31 years old, were born in Korea and each came to us at about 6 months old.
I'm sure that costs, policies and paperwork are all different now.
Your first, most important step is to find a great adoption agency that has a long and successful record of service in adoption. Children's Home Society and Family Services, in St. Paul, MN, is one of the best in the country. They have lots of info, and do work with parents in many states. If you can't visit them, I would recommend a phone call at least.