Speakers that leave room to upgrade front-end

I'm looking for speakers for a small apartment-- listening area is about 10' x 10' and whole room is 13' wide x 27' long x 9.2' high and i listen across the width of the room. Very varied musical tastes-- I keep my music alphebetized, and a typical range from the "Ps": Charlie Parker, Maceo Parker, Gram Parsons, Pearl Jam, Michael Penn, Portishead, Pretenders, Prince...... What are your suggestions in the $1.5K range?

Please keep in mind that I don't want to get too far ahead of my front-end equipment-- I'm running a Rotel rsp-960ax preamp into a Parasound HCA-806 (6 X 80 wpc if I recall correctly). I anticipate upgrading the amp set-up to bi-amp the mains with a nice ss 2-channel amp like a little Bryston. Down the road, I definitely anticipate bi-amping the mains using the small solid state for the lows and a tube amp for the highs--nothing too esoteric though.

In short, I need speakers that will work nicely with my current mid-fi set-up but that will be good enough to take me through a couple substantive upgrades over the next several years. I've looked at the SF Concerto and the small Energy Veritas-- I'm very open to alternative suggestions.

Thanks,

D