I recently traveled in and out of Berlin with a laptop, an mpc, a critter and gitari bolsbass, a TT-303 and a DSLR camera. In to germany was no problem. Out of germany i had to give all my machines to the agents. They passed all my machines in a chemical test, using some soft pad that they swiped all the boxes with and then put the pad in a big machine to see if there was drugs or explosive hidden inside. It took me some 25 minutes extra. I think its worth thinking about it and go early if you take electronics with you. The agents were very nice i must say. Althou i was a bit nervous that my machines would keep traces from hrm.... my casual flower consumation... Especialy on the mpc pads.... 

But everyting went smooth and fine. They didn't even ask me to turn them on.