I'm pretty new to this stuff, have never owned a true surround sound system. Currently I have a Pioneer VSX532 Surround Sound A\/v Receiver, but I am only using the standard speakers from my very old stereo, so it's time to upgrade. What should I be looking for in regards to speakers? Any recommendations around $300 or less? Obviously I don't want to purchase something that sounds like poop.\n\nI have attached a photo of the back of my stereo, and also a layout of my living room if that helps.