I have some San Disk IDE-AB-6 IDE to PCMCIA Flash Adapters that I have put PCMCIA to Compact Flash cards into.
They are designed to replace a 2.5 IDE hd and bolt in the same way as a HD.
Here is an image of the item.
http://www.asahi-net.or.jp/~SE1M-NITU/image/computer/tp220/ideab6.gifI have eight of them if someone wants one I will sell em for $20 plus s/h.
I have used them on PC and Amigas (CD32 with SX 32 Pro).
They take a 2.5 IDE HD connector. Perfect device for amigas.