Dear LazyMastodon: Hey, we have this ancient 2008 Mac Pro, used to be the Family Mainframe and homework machine for the kids. All It does now is feed music to a DAC and run a Plex server. But it's hot and eats watts and MacOS is so old it won't run browsers or anything useful.

I think I'm gong to replace it with a basic Mac mini and a couple TB of outboard disks. What's a good choice for those disks?