my pc is dying. got a copy of windows xp on it, can't update, that sort of thing.
it is a Tiny pc from 1999. 12gb hd.
there is a tower on ebay, here doesn't say what make but it's got a 40gb hd. It's on buy it now for £40, £12 p+P, or best offer secures. Its got xp built in. Seller says it has a sticker on the front with product key, and that it automatically does theupdates.
It will be faster than your P3, but really needs more memory to fly with XP - get an upgrade from MrMemory or wherever. And note that it is XP Home Edition - google for the differences from the XP you are used to so there are no surprises. Although personally I would run Ubuntu (or some other Linux) on a machine of this spec.