@baddawg Thanks. I opted for a Trigkey G4 N100 mini-PC in the end, and started porting everything over to it a couple of days ago. It's a bit of a slow process transferring lots of files over, but I'm getting there. Currently have it set up with 4 USB HDDs connected through a hub, plus of course the old NAS drive available too.
The Plex library isn't very large yet, as I've normally deleted stuff after I've watched it, but I'm sure it will grow with time. I've also got all my porn running through it, and though I know PLEX could probably handle the job it would mean spending a lot of time reorganizing everything, so for the time being I'm going to continue running StashDB on it which is fine for local access. I'm not sure If it will allow remote access yet, so I'll need to investigate.
The N100 is struggling a little bit right now, but I'm asking a lot from it. Once I've got everything moved around and all my scans finished I think it should be OK. Torrents are taking forever to allocate for large downloads, but that's probably due to all the other stuff I'm doing with the disks at the moment. I'm hoping it settles down eventually.
As for power, I tried running my gaming rig through a power-monitoring smart plug for a couple of days, and at idle it drew around 0.12 kW per hour, costing roughly £0.85-£0.90 per day if I left it on. The N100 is sitting at around £0.10 per day, so the £150 to buy it should be covered in around 6 months. Not bad at all IMO.
