Mmmhhh. I still don't know whatta think aboot this OS4 thingy. Like
I would use my miggy for retro sounding and gaming... But i seek good performance anyway. After reading all your nice answers I think syko's suggestion sounds very good. And I think fred is right: no apps, no support = no fun.
I still have my bare 1200 with 40 meg HD, but i'd better re-install everything and stuff it with RAM and expansion boards. But It's not in mint condition tho...