Emig, you can get an idea of prices by looking at Hifi Shark's sold listings.
As far as speakers, I have heard B&W's and like their sound. The Klipsh are loved by many, though I haven't listened to them since the 70's and they were the huge Cornwall's or something like that. They are nice, but I don't think will give you the detail of the B&W's.
If you want to get something 'better', I suggest a time an phase aligned speaker like Vandersteen.
Magnepan, ProAc, and Harbeth are some other manufacturers I would recommend you listen to before buying anything. Of course, try to find a place that sells the Klipsh, or maybe a local Agon'er, and see if they suit you.
B