Hello,
I am in a situation similar to you but I moved overseas after living there for most of my life to fly for a major airline and I am now considering moving back to the states. Check out
www.flightinfo.com You can get a good picture of the industry on that site. Also for pay scales check out
www.airlinepilotcentral.com Just a question, why would you want to live BA and start all over at another airline???