OK, we're moving into a new house and I'm finally ditching cable for DirecTV(after years of looking and wanting to, and never doing it). Anyway, the house has a brand new metal roof and I'm almost certain I'm gonna need a pole mount(based on what I read here and elsewhere), I'm just wondering if the installer will have this on the initial install(I left a note when I set up the appointment for Sunday afternoon about it through DirecTV's website), and how much it will cost(I know the standard installation is free, but how much is the pole mount? and any extra costs resulting from it?). I just want to be prepared when they come out and let this be as smooth as possible. Thanks in advance for any answers.