A good start would be the following:
SET Amp -- Wavelength Audio
New Audio Frontiers Speakers -- Ref. 2 or 3 ($4 - 4.5K approx.)
REL Sub
My gear consists of Soundlab M1 speakers, CAT Jl-1 monoblocks, Wadia 861 CDP, Solid Tech Rack of Silence, custom made cables.
My purpose in mentioning my equipment, is to suggest my leanings, and advise if I were interested in moving from large, power hungry, full-range electrostatic speakers, the above components would be 1st. on my short list.
While I'm sure not many have heard New Audio Frontier Speakers, I can assure you of their sonic attributes. Theyre very fast/transparent, one of the best box speakers that I've heard, and quite easily driven by SET's.
My local audio dealer here in Indianapolis, is the importer for these speakers, and the seller of all the gear I own including the 2-chanel gear already mentioned, and my (7) HT speakers. Although I said local dealer, he was for several years; however, Jim recently moved to CAL., and it's an understatement to state that I will miss hanging out at his store, and obtaining his very cogent, objective advice.
Jim's opinions were highly valued, and I could implicitly trust his advice. Something, I'm sure you would agree is difficult to find, in this hobby.
With that said, take a peek at Jim's A-Gon posting, give him a call, and chat about your needs. He can be found at: http://cgi.audiogon.com/cgi-bin/search2.pl?seller&zzSynersound -- or simply search for: New Audio Frontiers.
No, I'm not related to Jim, in business with him, or in a position to monetarily gain from this plug. I'm just simply a very satisfied customer and am grateful for Jim's advice, and will miss his store, and the fellow hobbyists I had the pleasure of meeting there.