I'm going to down size and upgrade my entire system. I have a pair of Paradigm studio 100's v.2 a studio cc v.2 and a marantz sr 8000 reciever. I never bought the surrounds so I'm going to go with a pair of towers an integrated amp and a sub. I want to start with a new sub and keep the 100's for now. I will use it 90% for music and I listen to stuff like nin ,tool ,crystal method ,primus ,a perfect circle and lots more but thoese are my favorites for bass tracks. It needs to also handle movies cause I will play dvd's on it. As for music I like it when bass goes deep thoese are my favorite tracks. Room size I can't specify cause I seem to move alot so let's say go big sub and turn it down if needed.