Just wanted to thank everyone for the recs... I ended up, for now, getting a set of Celestion SL6s at a pretty good used price.
I am now thinking about abandoning my large (very) Klipsch main speakers and replacing them with something smaller/better, maybe even the higher-end Klipsch reference series speakers.
Also I will check out that In Living Stereo store in NYC, too.
An unrelated question-- probably like many of you, I have home theater, but I care more about "music" sound than home theater. In other words, I have pretty entry level Klipsch home theater center channel and surround channels. If I upgraded to a better set of stereo L/R, I assume there is no issue continuing to run those with the less-impressive center and back Klipsch, right? I tend not to feel that the information coming from those speakers is nearly as important as the sounds coming from the main L/R drivers.. Thoughts?