If you have a Cyberstorm MKIII or PPC and you are lucky enough to find a GRex 4000D. They are the only PCI interfaces for 4000D's with a video slot.
I've never seen one

Personally I feel that the speeds that Amiga Ethernet cards can do are pretty crappy whatever version you get.
An 8-wire parallel cable and PC2Amiga is the cheapest solution.