The recent (nineties?) Deluxe box with Y2K, Brainwash and Bavarian Fire Drill. Or, if I can find it all, the original early eighties one with all three expansions - not that there's a vast difference.
If you're interested, could you mail me? I don't have an address for contacting you. I'm either zotzilaha at google's evil email emporium, or anything at all at zotz.demon.co.uk
I'll be less busy after the 20th... maybe...