I've got a couple of older 500GB Lacie drives in the same style.The housing is sealed plastic so you can't get at the drives. I no longer buy external drives in cases that can't be opened (I've got nine of them in different sizes and manufacturers). I've now switched to the aluminum cases from Other World Computing with drives I buy separately from NewEgg. That way I know what I'm getting and can switch out drives for higher capacity units. For temporary backups I use a "toaster" that I can put bare drives into. But I don't use it for drives connected all the time (expansion and TimeMachine).
OWC Mercury Elite-AL Pro
is there any benefit to get aluminum cases? the price is almost double from the one recommended in the second post here.