I just got a Polk PSW10 floor subwoofer. I am trying to find a cheap receiver and figure out my speaker situation. First of all, I don't know what kind of wires I need, or ports I need on the receiver in order to be able to connect my sub. Also, just as a money saver I was thinking I could hook up some 6-7 year old RCA stereo speakers to it, would this work? They have the black and red polar cables. I would like to get just a basic receiver that will satisfy these needs. Any suggestions on any of this would be much appreciated!