Personnally I have a PC here with a 250MB ZIP drive and keep all the disks formatted for the PC and use CrossDOS on the Amiga so I can copy the stuff onto the Amiga. I have my Workbench on CD created from the PC. Also the 250MB is a massive file storage device for getting Aminet files to your Amiga. Saves all the problems of floppy drives. I generally get ZIP drives fitted to all my machines.
The PC on the disk is cus they made these also for the Mac. The PC drives were often Parallel port units, which I also have. SCSI was genrally used on the Macs. You know if its an SCSI unit cus it has on it the SCSI symbol. Internal ones are IDE and I also have these on the Amiga towers I have.
Don't forget the unit number which is usually limited to 6 or 5.. And also switch the termination off if you intend daisy chaining another SCSI device. There can be probs with the devices if used as a kind of hard drive cus they power down and I have had one muck up a hard drive on the chain. Best to have at the end of a chain. Also avoid leaving them on all the time cus the power supplies don`t last. I have burnt out several.
scuzz
http://www.commodore-amiga-retro.com