Yes, SCSI absolutely. For 68k OS with old IDE-standards it just makes that big difference. No CPU used and possibility for several devices. Especially CD burning benefits of it... not to talk about boot time
Although Blizzard's SCSI-2 standard only gives you 7 devices simultaneous, I had it full for years
HDs, CD-drives, DAT, scanner... external SCSI-box is nice for temporary stuff and copying stuff with other systems.
Remember to configure devices to synchron and reselection with more devices, so you won't get any slowdowns. You can do it with scsiconfig for HD:s and with myunitcontrol (Aminet) for CD-roms and other non-saveable devices.
EDIT:
Also if you have any problems with some device (like burning cd:s), check the version of 1230scsi.device. It can be updated with software. There's at least version 8.5 available, maybe newer too. I had some problems with one CD-writer. Writing succeeded with low percent... and updating solved it. Never had coaster after it
OTOH, several other burners worked fine, but it's good to have it up to date anyway.
