If You Could Have An Amiga Replacement Mother Board

[A6000]

Would you rather have an ATX format M/B which you could put in a new case?

[A6000]

It would have to be the walker, no sorry I meant to say A4000T with 16x PCIx for graphics, plus 6 ZorroIIIexpress slots.
I would like 68080/4ghz, but will settle for multicore PPC.
Any design using off-the-shelf components should use a common specification so we all have the same hardware, reducing the possibility of software crashes.
What we DON'T want, is to buy a new computer every 2 years, as happens with PC ownership.

[A6000]

On reflection, I don't think we need the fastest DX10 graphics card available because the software producers will not port their 3d shooters to the tiny amiga market, so an HDTV capable, amiga compatible chipset, using FPGAs will be good enough, possibly supported by an openGL 3d graphics processor.