Here's a demon clever little thing: GSpace
Whats that then? For those of you with a gmail account it allows you to select files from your PC and upload them for safe keeping to your gmail account. As well as being secure storage, this has the added advantage of making the files available to you from any machine with an internet connection.
It is an add-on for Firefox (a much better browser than IE!). For those who haven't tried this browser yet, give it a go. Its got tabbed browsing and millions of useful add ons like this one.
So there you go.