Although everyone thinks ATM's are the way to go, AMEX TC's in marks from AAA only carry about 1/2% discount. That is the same as a $2 fee on a $400 transaction at an ATM machine.
TC's are not as convient as cash. German banks may charge a fee, and I do not know who else in Germany will. Banks in London and france do not charge a fee.
In London, department stores cash TC's with no fee.
It is nice to walk out of the airport with some local currency in your hand. Get some coins, if you think there is any possibility you will need to use a telephone.