connect a modern mouse to a Miggy (and mantra approach)

[whabang]

There is a driver for serial mice on the Internet, so in theory you should be able to use the following setup:
One USB->PS/2 adapter, connected to a PS/2->Serial mouse adapter, connected to a DB9->DB25 serial port adapter.

I have no idea if this would work in reality, as the amiga's serial port isn't exactly complying to the standards...