@toys4geeks Yes, am considering a central NAS.
If wired, ok yan if walls are still open, go for wired with backup line (two per wall, 1 LAN 1 for backup or phone) and drop every line to where your DSL router is)
If wireless, signal strength na lang bantayan mo before installing kasi depends sa placement ng devices mo (HTPC/NMT)
for video -- challenge sa wireless is the performance sa video on 1080p, so make sure you get wireless N 300. 720p over wireless is ok, 1080p occasionally may lag pero if you dont mind that, least cost ang wireless (mura and easy din kasi wireless).
for music -- since each play seperately, HTPC source has a jack, the best pair is a powered speakers into a 3.5" jack to your player/source.
I avoided the ceiling speakers by using screen off feature of my LG. i select the audio from my diskless,networked NMT which is velcroed at the back of my display, LG screen off , voila. I guess acceptable kasi medjo maganda ang speakers ng LG 5500.
for the other rooms where i wanted audio, since NMT ang source ko, i used powered speaker -> jack to RCA jack adaptor -> NMT stereo out. alternately, i have wished there's a jack by the headboard where i can plug the powered speakers so i can control the volume manually via the speakers knob.
goodluck sa project mo.