I took a Post Office Travel Money card, well topped up, and my normal debit card to Europe. I found sometimes the PO card wasn't accepted by toll machines or petrol station card machines, less often the same happened with the debit card. Always got one of them to work though. But, first chance I got, I withdrew some cash at a cashpoint for contingency. It might be worth telling your bank that you are going, so they don't stop your card when you try to use it. Didn't work very well with my bank, as they wanted dates for when I'd be where, and most of the trip was a wing it job, so I couldn't say for sure. But I had no problems with them on that, and I will inform them this time as well.