I'm only two step far from having an intelligent house, just missing finish my own domotic system and then a bot to control, music, TV, and electricity.

Let's do the list:

1.- Kodi on TV ✔

2.- MPD on a hidden PC inside my old grandpa's stereo ✔

3.- a small data server to provide music, movies and series to Kodi and mpd ✔

(This is something that im trying to do with spare PC's running Linux on my free time)

MPD on a PIII (500mhz + 512mb RAM)
Kodi on a dual core (2.80ghz +3gb RAM)
Server on a opteron (1.80ghz + 1.5gb RAM)