I'm looking to upgrade from my Denon 3200 (5.1) to a 7.1 Receiver. Currently, I have a set of 8 yr. old Polk RT-12 speakers for mains, CS-400 for Center and RT-5's for surrounds. I have had my eye on the H/K 7200 for a while now, and the price on it is well below $1,000 these days. My question is, am I wasting my money upgrading my receiver and keeping these speakers? These were older polks purchaced before you could buy them at Circuit City, etc, and I have alway felt their quality was good. However are they mismatched with the 7200?? I can't find any place local to let me demo the receiver, so "trying" it is out of the question. Anyone familiar with these vintage Polks? Any suggestions? Thanks. Drew