I haven't really been keeping up with NAS technology. Are any of the newer NAS units a viable alternative to running Squeezebox Server on a PC? Perhaps something like this:

http://netgear.com/products/home/sto.../RNDP600E.aspx

I would definitely consider going this route, but I don't want to take a performance hit vs. a PC based solution. I see that the newer NAS units have much faster processors than they used to, so my hopes are high.