Well, from my initial toe-dips into this murk (representing the
tentative start of one of my quantum leaps in home kit) it seems
eminentlly doable to run Loitech Squeezebox server on some NASs -
Logitech even provide installation instructions and support to certain
Netgear (i think) NAS products...

Also, take a look at the QNAP range of NAS drives- QNAP offer to pre-
install various software on your NAS for free before purchase. Their
list includes, (or at list did include), Slimserver for serving to the
Squeezebox.