Okay, so I know pretty much nothing about speakers and am looking for some advice. Last year I bought a receiver and a very poor quality 5 speaker system just to get some sound. I'm looking for speakers under $200 that will most importantly be used to play music, but also serve as audio for games and movies and stuff. Are bookshelf speakers a two speaker system? They're cheaper and it seems like they would provide the better music listening experience, but I can't figure out if they come out of a receiver or they work independently...going through the receiver is what I want. Basically, I'm very confused and need help!