EBAY: SBC 486 50MHz (not mine)

[psxphill]

It's a shame this can't share resources with the Amiga side, otherwise it would have a bit more value to me, personally.

You could probably make a bridgeboard that worked alongside one of these cards. But finding someone that can do it and will put the effort in is the problem. There is software for linking PC's and Amiga's though, which should work.

[psxphill]

Most probably it's so much easier to link them via Ethernet without any special hardware (and probably not much slower either). A bridgeboard requires dual-ported RAM and lots of protocols and system software on both sides.

Yes that was what I was referring to as "There is software for linking PC's and Amiga's though, which should work.".
 
Siamese v2.5 pro allowed you to retarget amiga graphics over Ethernet.
 
http://web.archive.org/web/20080307010045/http://www.users.dircon.co.uk/~pnolan/siamese.html

[psxphill]

At that point, why keep the Amiga motherboard?

Mostly for nostalgia. Although if you could get a link between the two computers in the case then that would be interesting. Even if it was so that you could use a video toaster from WinUAE (which I don't have). I don't even have a big box Amiga anymore, I used to have an A2000 but got bored with not having a use for it. I always wanted an A4000.
 
But it's just pipe dreams, which I think is what keeps us here :-)