Ivan, well as you can see I am worse than you at replying so certainly no need to apologize.
Thank you for the advice. Which Linux Mint distribution would you recommend? I looked it up on Wikipedia and there seem to be many, chiefly branching at Ubuntu based vs. Debian based.
Um, maybe scratch the previous question. I went to the Linux Mint website and it looks like I just need to choose between Cinnamon, MATE and Xfce. If I had time to play I would love to try Cinnamon (or each of them in turn). However I'm consumed by my work life currently and this small project could take weeks of snippets of my spare time. So please be understanding if I'm slow to reply.
I think I should use Xfce simply because it's the smallest and most stable, but they state that each edition has "different menus, different panels and configuration tools". What say you?
Also, prior to seeing your reply I did at one point boot into the BIOS to look for the disks and the BIOS could not see them (or it, I may have only had one plugged to SATA cable). Is that significant or just something to be expected?
Thank you,
Mike