Have you considered a network connection?
If you've got a amiga with a PCMCIA port, you could invest in somthing like the 3C589 10Mbps network card, plug it in, set up all the networking stuff on both machenes, and away you go! Really fast, and you can see the files and directories on your Win98/XP/Whatever box before you even decide to copy them across. Just like having another hard drive on your amiga, execpt thats in the PC system.
I use SMBFS and the 3C589 drivers from aminet, and the AmiTCP program set from a archive with a extremely useful install guide (Does someone have the link?). P-mail me for all the notes on networking that I have accumulated.
Hodgkinson.