I have a room that is 12 by 15. I am installing a Projector 720p. I will have the following components. Blue Ray, Wii, Cable DVR, XBOX 360. I am on a pretty tight budget. But I have always said sound is what puts you in the mood. I guess do I need a switch or is their a reciever that will act as a switch and what is the best bang for my buck.