You might want to consider the new Squeezebox Touch, which is 24/96 capable, and has even higher quality analog and digital outputs than the older Squeezebox models. Only caveat is the Touch color display is only readable from ~8-10' distance. Unlike the Duet, the Touch remote does not have a display screen, but there are apps for iPhone, Android, and Palm WebOS handhelds, that allow full control of the device from your listening position.
I was previously running my Squeezebox 2 digital coax into a Benchmark DAC, and felt the sound quality achieved 95+% of other "audiophile" transports I've heard. IMHO, the Touch (into a quality outboard DAC) is 99% there.