I see that the newer Squeeze Center, which is actually Slim Server v7, is available as a FreeNAS module. This means that it might be a good time to upgrade my T5700 based music server.
I haven’t actually been using this server for a few months. A while back I decided to try a “room correction” plugin from Inguz for Slim Server. This does some DSP transformations on the music stream on-the-fly, basically effecting some equalization. This plugin required more CPU power than a lowly T5700 could provide, so I’ve been using and old P4-2.8 as my music server these past months.