I hope the 815 based system is something you
are putting together from spare parts. A
440BX despite the lack of official 133fsb support
is probably the finest intel chipset ever released
until recently. Again, if you are working with
2nd hand parts, it doesn't really matter. I have
heard good things about Amithlon, but WinUAE
is certainly more mature. I can't give you
any info on AROS, would like to know more
myself. Good luck, sounds like an admirable
project.
C Snyder