I think I cobbled this together from a massive pile of junk that a guy from our church gave us.
On 2020-07-16 I found some more info in this newsgroup post from 2020-05-08 when I was digging into some old newsgroup posts for nostalgia's sake:
...the power supply will be adequate. Especially
considering that I have 2 harddrives, 2 optical, floppy, 10/100
network card, soundcard, dual video cards, an auxilary fan, and a
wireless network card all running off of a 200W power supply. I
suppose modern processors take more power than my lowly PII 233MHz,
but I think most people oversize their power supplies. Although it is
fun to have lots of extra...
The dual video cards reminds me of the monitor setup. I probably started with one CRT but eventually got a ProView PL713s LCD screen on Black Friday. This was in the days when the sales actually started on Friday, probably at 6:00AM. So I ran the CRT and LCD side-by-side, probably until I left for college and took only the LCD to run as a second screen with my tablet PC.
The case I had this in was an actual "desktop" type where you would put in on the desk and then put the monitor on top of it. Not very tall, pretty wide and deep.