Hi, I am getting a US Bank card for the same purpose to use in the UK. I wondered if you knew about international transaction fees, I'm assuming that if your bank charges them the you pay them like with any normal debit/credit card transaction?
I travel a lot for work, so most of the cards I use have 0 international transaction fees. My AMEX Delta and CapitalOne Venture are intl-fee free. They do, however, carry a yearly membership fee which I'm sure makes them plenty of money.