Speaker Upgrade

I am looking to upgrade my speakers in the used market. I am considering The B&W 803D, Sonus Faber Cremona M, Dynaudio Confidence C-2, and Usher BE - 10.
The room is 20x20 with 18' ceilings. They will be mains in a 5.1 set up for SACD's, audio Dvd's and home theater. They will also be used when 2 channel listening. The amp is The Emotive XPA5 at 200x5.
Your input will be greatly appreciated!
Shows are a great thought.
I am in the Philadelphia Area and I am not aware of shows in our region.
Regarding wasting the dealers time if they gave me a great deal I would buy. I also in the past have purchased many pieces of equipment from local dealers.
Take up the dealers time. It's pay back for the 80's when the dealers would not give you the time of day unless you drove a Mercedes.
C1 signatures in mocha. I was also able to find a pair of black/chrome stand 4.