Recently I bought a pair of Paradigm Studio 100's and a Studio CC center speaker to replace my Paradigm Monitor series speakers. I have Paradigm Monitor ADP370 surrounds and MiniMonitors for my surround back speakers. Would it be worth it to upgrade to having Studio ADP's as surrounds and Studio 20's as surround center back speakers? Or save up my money up for a nice 200+w/channel power amp. My local Audio/Video store has a good speaker upgrade policy, I can buy speakers and within one year of purchase I can upgrade to some new speakers (50% more in cost) and use the full price of the original speakers purchased towards the cost of the new speakers. My speakers upgrade policy will end on March 2. I currently only have a Parasound 5x85wpc, which sounds fine, but I am think I will need a more powerfull amp to make full use of the new Studio 100's.