The Naim HDX sells for $8250, which includes an excellent internal DAC. Options that I am aware of are two external power supplies - one quite expensive and one ridiculously expensive, but they do improve the unit's musicality even more. You also have the option to bypass the internal DAC and connect the HDX to your DAC du jour, which is where I would consider putting extra money instead of the external power supply options.
Man, this thread is making me even more anxious to pull the trigger on the HDX sooner rather than later! ;->
Man, this thread is making me even more anxious to pull the trigger on the HDX sooner rather than later! ;->