Hi,

>I refuse to replace this machine with a stupid PC, and I don't know that
>even the Ultra 1 and 2 machines (seems a logical upgrade) have better
>serial.

just an idea, but what about the SBUS PCMCIA controllers ('nell0' i recall from
some playing years ago)
I'm not sure about support under NetBSD or i/o speed (with a pcmcia modem card)
maybe someone has tried this recently ? prehaps ebay has some going cheap ?

regards,

Pete