(Sorry, I'm sure this has been answered before, but I couldn't dig it out of the message archive.)
A manager at my local bank -- which does not charge a fee for out-of-system ATM use -- advised me to use that same Visa-branded ATM/debit card for purchases in Europe in lieu of cash, to keep ATM fees down. (That would be whatever fees the other banks charged.)
However, I have the idea that a US debit card doesn't work the same way in Europe that it does here. Maybe it doesn't work at all?
(Normally we use credit cards for purchasing goods, and hope to have a no-fee one in hand before leaving.)
Thanks in advance for bringing me up to speed.