You might take a look at the Linn network players - they allow any number of different user-interface options, and excellent sound quality. I'd also imagine that their support in Scotland is pretty decent :)
ETHERNET DAC
Could someone please confirm whether I have this right. I have a QNAP NAS. Initially I ran the ethernet into an XBOX onto which I downloaded the XBMC interface, which I love. There is no digital out on the XBOX so I bought a S/Box Duet to get a digital to the DAC. After XBMC I found the Duet interface a total pain so it went back. As far as I can see all that is left for me to try is an Apple TV onto which I can download XBMC & then take a very poor quality optical out to the DAC. I know you can get a Pace-car etc. to clean up the optical out from the ATV but living in Scotland getting all that organised seems like a lot of hard work. Is there anything that would give me a high quality digital out & allow me to use a TV for the interface ?