I am running Yammy RXV-1200 with Def Tech Pro cinema series for my HT set up. I am looking at upgrading my main speakers for better 2 channel music. I plan to use the Prosub100 as the subwoofer and am looking at good quality bookshelf speakers. What would your choice be in the 500-1000 range? I do not mind going used also and hence the following choices come to my mind: 1. Paradigm studio 20, 2. studio40 (used), 3. B&W 602, 4. Dynaudio Audience 42/52 5. SF Concertino (used) 6. Vienna Ac Haydn (used) What would be the best in my situation and what other speakers should I look at?