longer internal SCSI cable (it's actually *really* long, with way more connectors than I need, but it'll do for now!), and the Amiga fired right up with the internal HDD, (now) internal CD, and external LaCie HDD. So far I haven't had any termination issues, and everything is working smoothly.
So far... Try to keep that scsi cable as short as possible.
Upgrades to consider:
'040 with ram and scsi onboard.
MegaChip
PicassoII
damn tinkertoys 