Have you browsed Craigslist? These caught my eye:ESS Performance Pro
($165). I'm not familiar with this model, but if that's a Heil AMT in there, these are a bargain.Klipsch LaScala
($600) Holy crap that's a good price for La Scalas. I know that's over budget, but put it on a credit card, dip into savings, beg money from friends or family, leave some stuff at a pawn shop even. If you want an efficient speaker that sounds great, buy these. This is an awesome deal. If I had the room and didn't have too many speakers to begin with, I might just drive up there and get these myself.Vandersteen Model 2
($595) Here's another great deal. Vandersteen makes great, much loved speakers. Again, beg or borrow and stretch for these if you can.Martin Logan ESLs
($700) I don't know what model these are, but you might be able to join Team Electrostat pretty reasonably with these. They're worth considering.
I'm sure there are more on there that I didn't turn up, but these are all good speakers. Personally, I'd drop everything, gather cash, and grab those LaScalas. That's a great price.