ill probably add more later but
"Actually, I have just thought of another issue, with the streaming video & music, I guess it would make more sence for a wired network, as there would be more bandwidth availible for other users, say if a user wanted to browse the internet while I was streaming,..."
i happen to have made a post just about that saving your Bandwidth and streaming too (but some didnt like it

) several actually, one for security streaming and one for extending wireless reach....
while its always good to use fast wired ethernet were you can ,1 gig routers/switchs on some 11n, and pure wired routers being reasonably cheap now, and 1 gig switchs and PCi cards almost pennys, so use them were you can.
but wireless 11n and later combined 11n/wimax units is fine too, the trick is Multicasting single video streams that any LAN PC can then tune into if you like, and so easly have say 4 people in different rooms watching that same Multicast DVD at the same time on their LAN connected kit, while others are doing their browsing or whatever....
just read the whole of that
http://www.cableforum.co.uk/board/87...l#post34592432 and replace any IPwebcam reference with your Mpeg2 or whatever video type DVD/divX/Xvid/AVC etc you want to stream to all the LAN with VLC ....or even to that community wireless LAN you didnt think to setup to play your mates next door/over the road at TF2 etc
remember wireless is good,AVC encoded/streamed Video is Good, and small community wired and wireless LAN networks to take the strain off your VM STM'ed connection is also good, got to think simple and BIGGER....