As I still have my old Commodore computer hooked up in a spare room, I’m probably not quite part of the post-PC world. :-)
I would be quite happy with an updated Commodore with a modern 3Gig quad microprocessor, 8 gigs of ram, two 3 Tb Hard Drives, upgraded Commodore (or HP) Basic software and NO Microsoft anything. With the ability to use standard monitors, wireless, hard drives, printers, etc.