Just looking at freeing up some space in my house and DVD's and Blurays would do it. Is there an affordable movie server out their capable of holding a couple of hundred Blurays?
I would look in to a HP N54L. Put four (five if you put one in the optical bay) of the biggest drives you can afford on it, install freenas on to a USB stick. I use the plex app on my TV, chrome cast and iPad, with plex server on the HP. love it.
you should be able to find one for £150, then spend as much as you like on hd's