I'd have to say, setting up an Ethernet network isn't the easiest way of doing this IMHO, but the most satisfactory in the long run. The combination of dodgy PCMCIA drivers/hardware, TCP/IP settings and Samba can leave you with a much reduced hair count. Try doing a search for PC2Amiga, had that years ago and it uses a spacial cable indeed, different to the ParNet cable (which uses the nice bi-directional properties of Amiga ports and so can lead to destroyed CIAs if used with a PC). That will have the diagram, and maybe you could use that program youself. It *is* an old program though, and IIRC won't work under NT/2000/XP etc.
Failing that, a null modem cable will work, and there are several serial transfer programs, or terminals, about. I do have a nice network setup here though, and I wouldn't swap it for the world. All the internet connection, file and printer sharing goes through my Amiga...
