With my recent pickups, I've now got few 68k macs in my collection. I've got file transfer solutions for my Apple II's and pretty much anything PPC based but 68k is another story.
It really has little to do with the architecture of course and more with the available peripherals. I've read about SCSI to Ethernet adapters but they seem to be few and far between. Is there something like a SCSI -> USB solution? Is that even possible?
Right now it looks like the easiest solution (since floppies are so unreliable, even new old stock) is to setup a small network between a more modern machine (say my 6100/av) and the 68k macs. It just doesn't seem too interesting.