Any high quality music servers out there?

I'll second or third (or whatever) the roll-it-yerself recs. I've got a mac mini (very quiet) in my main rig hooked up to a dCS stack via a Waveterminal U24--seriously can't tell the difference between that and my DV50s as a transport. I've got a terastation full of Apple Lossless files on my network playable through that, or the Win XP box in my study. Pretty remarkable. I'm waiting on delivery of a couple squeezebox 3s to replace some audiotrons in my house (the SQB3s will do Apple Lossless, the A'trons won't). Convenience/space savings is fantastic. If you want to stay in the Windows family, you can also pick up a super small form factor PC for about $600 that is fanless and use that the same way as a mini.

Mthomas makes a good point about the importance of the software interface. How the music is organized and its accessibility greatly effects your ultimate enjoyment of this storage format.

I have a Squeezbox 2 and just bought a 3. Just add a linear power supply and a good dac.

Sammie there is also another one called Zero One...server plus upsampling for what its worth...personally I think this just the beginning and its better to wait as more mfrs start producing music servers and as result of competition quality and pricing improves

Henry -- Yep, I agree. best to wait as companies are rolling them out fast. Here's Sony's offering:

http://products.sel.sony.com/xl1/index.html?DCMP=showcase_vaio&HQS=xl1_sonystyle