>Oh, right, so I would want to use a £300+ Pegasos for x86 instead of a £100 motherboard with USB2, Firewire,
>Serial ATA, 5 PCI slots, APG8x, etc, for what reason exactly?
Well, you can use PC expansion cards in the AmigaOne due to its BIOS, the PCI and AGP cards everyone seems to want. OpenFirmware does the job well enough, but there's not as much variety out there as their x86-ROMed counterparts. That's the point of the x86 support in AmigaOne rather than them using OpenFirmware, which I think is a neat idea.
I'm not even sure where to buy OpenFirmware cards, but there's lots of places around here to buy the PC counterparts for use in an AmigaOne, and I bet they're cheaper than the OpenFirmware versions too. It seems the Amiga community wants the el-cheapo cards from their local PC superstore or Ebay or old parts from a PC they are updating, and OpenFirmware is a bit of a trip-up for these folks.