prolly a bit late now… but ive got both the ide and sata icy boxes. i likey them v muchly. very handy.
as for whether there is much difference between external exclosures, i dont think so.
depends on the looks and the connection requirements i guess.. you got a choice of usb / firewire / (e)Sata.
im using the external sata with a 500gb samsung spinpoint disk as the main disk for my work pc, and its fookin brill.. well its the same as having the disk in the machine proper really. but i can power down and take it home too 😉
so .. in summation..
BADGER BADGER BADGER whoo hoooooo!!
hope that clears things up 😉