And back that thing up with another USB hard drive from time to time and store it in a different place.
Pardon my ignorance, but is that device technically a server? If you store things on it, can you use it to host links to online sites?
Secondly, you have to leave beaucoup information with them in order to get the prices. Can you ballpark a range of what it costs for the various models, say, lowest to highest?