Hello i purchased Samsung Ht-As720. I currently have a 40" Samsung LN-T4065F,ps3,xbox 360, and a motorola comcast box(Hdmi). I wanted to hook it correctly can i have some tips on how to properly connect it. Also i want to purchase some new wires and banana plugs want to know what kind. Also i know you can add 2 more speaker to make 7.1 what kind of speaker can buy to use.