I am trying to put a theater together and I have no idea what I need. I have a Marantz SR9300 rec., KG5.5 mains, KV3 center, and getting a Marantz DV8400 DVD player. I plan on buying the Sharp XV-Z12000 projector. I need to know what SS speakers to use on the sides and which in-wall speakers to use for the back 7.1.. My sub is a 12" velodyne.