Hello, My name is Steve Mitchell. This is my first time contacting the forum. I am an audiophile by nature and would like help choosing a surround receiver and speakers. Currently I have a stereo system over ten years old -- 50w Luxman receiver, Polk monitor 7 speakers on stands, good quality cables/interconnects, and a new Pioneer DVD player that plays SACD/DVD audio formats. I am happy with the sound but want to step up to surround sound. I was thinking of spending roughly $1000-$1200. I will be playing cds more often than dvds, so the sound quality is the most important criteria in choosing a new system. The room I will be setting up in is about 18ft x 14ft, having walls of different construction (glass, brick, drywall, and a partial divider wall). 1) Would I be better off with a multichannel integrated amp (if they exist) because I never play the radio? 2) Would I be sacrificing sound depth/richness by starting over with small surround speakers plus subwoofer vs. adding three more Polks to the speakers I already have? 3) What model power source and speakers do you recommend for my situation? Any advice you could give me would be greatly appreciated. Thanks.