Now how many of those consoles do you actually use? =P
Right now i just use the PS4 :).
I have the same desktop hard drive that houses your media but in the 3Tb flavour. Are you not concerned about it failing? I was thinking about having mine connected all the time but for some reason I have a feeling it may just fail (probably the enclosure not the drive) a lot faster.
I'm considering buying an UPS to prevent HDD damage by power outage and yes I'm concerned about it, but i'm planning on expanding the server, and buy some drives just for back up.