[tomasr]

Notice many aren't free if you live outside the US and a few other locations; you'll get charged the $2 "international whispernet delivery fee" or whatever they call it.

And even then, they might not even be available (like the one you referenced).

If you want classics, much better to just hit http://manybooks.net or the gutenberg project site and get them directly in kindle format through your desktop/laptop and copy them over USB.