Northwoods_maine: Harbeths are hard to find used. However, incredibly both Super HL-5 and somewhat less expensive classic Compact 7-es2 are listed at A'gon. You can't go wrong, you can always sell at the same price.
If you like this British sound, you could listen to Proacs. Otherwise the usual Americna suspects at A'gon: GMA, Salk, Silverline Tyler, Zu. They all have great models in your budget. They work on direct sale model and are not easy to find for audition.