Thanks for all your responses. I am fairly confident in saying that the setup using the squeezebox had superior sound to the Cambridge. One person asked why I'm switching. The Logitech Squeezebox has been discontinued for years, and I figured it would stop working entirely at some point. Also, I didn't think it would be able to find a NAS device, but one person (searchingforthesound) seems to have accomplished it. I'd be interested in how that was done.
Thanks again,
Tom