The System is a BX m/b fitted with a Celeron 433 & 64MB SDRAM.

Yes, this is overkill. Any pentium-class system will do. I was originally after a pII/233 as I had
the motherboard handy, but then came across a smaller m/b which had inbuilt audio, video, modem
and 10/100mbit LAN. I chose a Celeron becuase of price and the PPGA packaging.

As it turns out, a Slot1 CPU wouldn't have fitted underneath the tube for the screen. I had to chop
the case in half to fit it inside the cabinet. The onboard sound doesn't work properly in DOS, so I
replaced it with an old ISA Soundblaster 16.