(1) definitely ps3 is region free wherever you go either its ntsc or pal your ps3 will definitely work.as power supply is standard will work everywhere
(2) i dont have much information on this
(3) you can use your same psn a/c in germany as i m living in middle east ( which is coming under europe network) i have created one a/c in USA but actually i m not living there but i can use american account for downloading games that is not available on europe psn ( like resident evil 2,3)







