[wr1020]

I'll be heading to Germany in a few months, in the Air Force and got an assignment there. I'll be there for at least a couple years, currently have a galaxy nexus and i'm using tmobile prepaid at the moment. Any recommendations on what service to use while i'm there. I heard tmobile has a big presence there. Any European users use tmobile or any other service in Germany? I'm gonna be in Germany mainly but plan on country hopping throughout my stay there so i'll be all over Europe. What are the monthly costs i'm looking at? Am i better off just getting a new phone with a contract there. Any help would be appreciated, thanks!