Look into used Snell, Type D and the C series III,IV,and V are all very good and should fit well in your budget range ($500-$1000). I had a pair of the C-V's in my room (15x21x8) for a couple of years and sold them to a friend so I could try horns. They sounded great in my room and still sound great at my friends house.
Good Luck
Good Luck