Looking for a doble bed room around Piramide, Marconi or Testaccio..

HI there !!!  my name is Carlos i am a tour guide looking for a place to live in Rome , i plan to stay there  for a couple of years , i am looking for others who want to share an apparment , i am really hoping to find a friendly flatemates , what i am looking for , is a room on an apparment , i would prefer no pets and smoking outside :)