The Buffalo Ministation is a small, compact portable hard drive which, as you can deduce from its name, is pretty shock resistant too. Although I myself have never dropped it, from the outside it does look pretty sturdy and would survive being handled about by someone who's less than careful.
By the standards of today, it holds a fairly small and sad amount of data. After all, these days for a fairly cheap price we can get 750GB and 1TB Ext HDDs. The Ministation came in various sizes, including the 40Gb which I am reviewing now. While not a fantastic amount of space, 40 gigabytes is enough for any domestic situation, and incredibly useful for business presentations. The plug and play simplicity means you can access it from any computer, as well. It's small, light and you can bring it with you anywhere you go, bringing most (if not all) of your files with you.
For the price that it is, you could pick up a good 250gb one, but for what it lacks in size it makes up for security. Like I mentioned, it is incredibly tough and would survive any general fall, from a table or bag or what have you, and contains some pretty decent encryption software as well, which protects your files as your back them up - a great little feature for anyone who wants to keep the contents private.
It transfers files at a pretty decent speed, although the encryption does slow it down a bit.