I live in a quite small apartment (one room and kitchen) and currently use my stereo as audio output.. I would like to know if getting a very basic surround system (cheap receiver + speakers) is worth it for gaming ? (esp. xbox). I just noticed when I was playing PGR2 that when I look back I hear a different engine sound than if i'm looking forward. So it feels like I'm getting only half the engine sounds normally when I'm playing. How big of an improvement is it? Can anyone recommend some cheap receivers + speakers?