Hi,
Off the top of my head, you can get these PCMCIA devices working with an Amiga:
1. Wired Ethernet card
2. Wireless Ethernet card
3. SCSI interface
4. CompactFlash adaptor
5. CD-ROM interface (proprietary)
6. RAM card (slow!)
A cheap way to add SCSI to an Amiga is to get a Squirrel SCSI interface from eBay - then you will be able to use SCSI Zip drives and SCSI CD-ROM drives, etc...
- Ali
EDIT: Note: PCMCIA cards on the Amiga need to be true 16-bit older-style cards and not the newer PC Card 32-bit ones...