NewForm Research, manufacturer of high end loudspeakers, is a strong proponent of digital
amplifiers. Their newsletter (update) of August 03 is devoted to this topic:

http://www.newformresearch.com/whats-newfr.htm

Having gone from Denon's top of the line 2-channel receiver (DRA685), to a Panasonic XR25 digital receiver, I am sold on the benefits of digital amplifiers. The specs, on paper, may not be as good as an analog amp, but the proof is in the sound. The little Panasonics, at least in 2-channel mode, are amazing.

Rob