I'm getting sick of relying on floppies and ZIP drives, their reliability isn't great these days. I recently set up an SE with 500MB HD for my brother and wanted to install as many games and applications on the HD as possible. The fastest way for me was using an external SCSI HD that worked on the SE of course and a Powerbook with PCMCIA CF card slot. I was able to copy all the data from OS X onto the CF card, then straight over to the Powerbook.