Hi,
Dare I say it, but I used to sometimes use the extremely fast and efficient (cough!) software PC emulator known as the "Transformer" software on my 1Mb A500!
It was fine for running very basic ancient DOS stuff like text editors or early versions of dBase, but not much use for anything else!
And for a while, before I got my hands on DOS2DOS (remember that?!), it was the only way I had of editing stuff written out to FAT-formatted disks...
- Ali
EDIT: I got a KCS PowerPC x86 board for the A500 last year, but haven't really done anything with it yet...