Jimmy:
If you want the facts on working in the U.S. you could get the real story from a fellow countryman. There is a pilot from Norway who flies for Evergreen Helicopters of Alaska. His Name is Nils Bergen, he has been in the U.S. for about 10 years. He is a really nice guy and would probably be willing to help you out any way he could. Just do a web search for Evergreen Helicopters of Alaska, once you get thier phone number just call and ask for Nils.