Don't get a wireless keyboard or USB or anything that isn't P/S2 (or the older connection) unless you have the old working keyboard somewhere to hand. And write on the back of the PC and the ckeyboard connector so that you are reminded where to plug it in.

You just try recovering from a crash with an OS that has to be well and truly operational to get the USB drivers working. Go on try it.

If you can't alter the BIOS settings with it - the keyboard is a BIG hassle waiting to bite you on the bum.

Isn't technology wonderful? Think smart, not clever.