Beware of room & amplification, Sunnyjim! I successively had Virgo, Libra AND Avanti -- and, also auditioned the Medea -- AND met J.Gerhard (Mr A Physics). I spent 2 happy yrs with Mr Gerhard's products.
IMO the difference in quality justified the price incremental. (Glide3 -- *wow* is word for the new Avantis... but wait till you hear the Medea)
HOWEVER, G. at the time mentioned the following caveats:
a) Amplification. I'm not sure you can drive Avantis to their best with the present gear... so you'd be looking at a biggger investment than the speakers' price differential!!
b) for your room I think Virgos is probably as far as the room will take.
My room is larger (~25...), so the Avantis were perfect, the Medeas just over the limit. BUT: in order to control the Avanti's (i.e. to get my money's worth out of them) I had to use solid state MONOS (Symphonic Line RG4).
Hope this helps -- if I can help further, don't hesitate.