More info needed? More info given:
Rig 1: My current computer, two hard disks but I figure that what works for one will work for the other. It uses Windows 98.
Rig 2: My (hopefully) soon to be delivered new computer, one hard disk and this will also use Windows 98.
I guess I could plug in one HD at a time and just copy stuff across then uninstall it again when I'm done.
On the other hand I'd rather keep them separate, so a parrallel cable sounds better (or a null cable, whatever that is?).
Also note that I don't want to mirror the drives, just choose select programs/files and copy from one to the other (I.E. MP3 collections and so on). But I don't want to copy the boot sector.