heh.. I didn't even notice that question. I've had to transfer some really big files to my ancient (~1994, PC-DOS 7) machine via floppy. It had pkunzip&company (a registered version from the person who gave me it) but for some reason I went along and wrote a VB6 program to split the files into 1440K chunks and a QuickBASIC program to put them back together. I can't remember why I didn't use the zip spanning method but I do remember having a good reason.
In any case, transferring files is more a burden of time then a limit on size.