nadamp,
Lots of good recommendations. I'll second the Golden Ear and Vandersteen suggestions. If you can, check out the Bowers and Wilkins 683 S2, one of the best values out there right now. I've lived with them for over a year, love them. Also, the Monitor Audio Silver 8 is a great speaker as well. A little harder to drive but the 80 watts from year NAD should be enough for your size room. Good luck with your search.
Cheers,
Scott