Monitors for Large Room

I am looking to add a second audio system in a fairly large living room (14x25x8). Due to spousal constraints (large couch and chairs in middle of room) I will need to place speakers at one end of the room relativeley (1-2 ft) close to the back wall/window and they will need to project over the furniture (30 inches). Target system will consist of integrated amp (tube?), CD player and speakers bought on Audigon for total price of $4-5k. I am starting with speakers selection and need advice on used monitors in the $1200-1600 range that can handle the room size.

Looking for advice on any aspect of system design but particuarly speaker selection. My potential candidates thus far:

Ariel 5Bs, ATC SCM IIs, B&W 705s, Green Mountain Callistos, Harbeth HL-P3ES2s, Paradigm Signature S1 or S2, PSB Platinum M2, Spendor SP3s, Totem Model 1s and Usher Be-718s.

I have heard the B&Ws and Paradigms but have limited ability to hear the others. Musical taste is eclectic but includes folk, jazz, blues and accoustic rock.