next on my agenda:
A windows 95 machine that still works, just need for it to do *something* (old dos games are a possibility

)
A PC with no power supply and no hdd that just needs those two things and a monitor

(it's got a P4 chip in it, so it's worth doing something to get it working again

)
A dead PC which needs stripping down to see which bits work and then either replace or get rid - not sure... it's 10 years old and up until this time last year, still worked.
May also dig out old Commodore 64 at some point too - just for old times sake (I bought it a floppy disk drive some years ago and it's been sweet!)
Either way, whichever of the computers I can get up and running (with a decent amount of ram - except for the win95 machine as it's waaaay past it :-p) will have ubuntu slung on it - now I know what the heck I'm doing (at long last!)