woot, looks like so far I win!
I have two fairly old computers that I use on a daily basis.
One is a server box that is 5 years old now that is a p3 600mhz.
the other is acting soley as a router. Pentium 100mhz. Its got some strange amount of ram (as much as I could find).
this is just one that I use everyday. As far as oldest, I would probably be beaten, because oldest is only a 486dx66 since I no longer have my 286