In that pricerange, for finished speakers, I'd look at the Salk Songtowers, Selah's speakers with the RAAL tweeter, or Gedlee Nathans.
For GR-Research speakers...it depends on if you're going new or used. The N3 towers could be built for around your pricerange, I'd imagine, and I'm sure they sound amazing (I have other GR speakers that are very similar).
The Magnepan 1.7s seem like a nice offering, as well, but only in the right room. If you're looking for that sort of presentation and have the room for them, you could be very happy going with those.