Originally Posted by
gamer83
That's the beauty of AMEX. All you need to do is call UK AMEX, tell them you have a US AMEX and they will issues you a UK card when you live there. You don't have to worry about whatever credit bureaus UK uses!
This is exactly how it worked for me when I moved from UK to US - I just called them up and they gave me a shiny new US Amex with no questions asked. It was a couple of years before any other credit card would give me a credit limit >$1k, but I could spend $5-10k/mo on my Amex from day 1 with no problems.
I closed my UK account, but I could have kept it open. For the sake of 1 years fee it probably makes sense to keep both accounts open for the year you are away in your situation.