If cost is not an issue, the best "moniter", and one of the best speakers I've heard period, is the Kharma Reference Monitor 3.2.
Suggestions for a monitor speaker
I need a monitor speaker for a small room, low to medium loudness levels, with high quality associated components. (Magnum Dynalab 208, Proceed CDD transport,Musical Fidelity AC 24 upsampling DAC, Nordost interconnect/speaker cable)Cost really isn't a major concern.