Hey, Rob, I think I have an easy way to backup files by default. If possible, set up (or have Khan set up) an IMAP account through your e-mail server and then download an e-mail client, such as Thunderbird, to extract the messages from your inbox while keeping them in the server. You can use Thunderbird to read and write e-mail, while having two copies of everything: 1) your e-mails as they are now on the server, accessed as you probably do now by logging in through the Web and 2) your e-mails through the mail client. Using the mail client, you can also transfer your files to your hard drive.
Oh, and if everyone isn't already, I suggest using Firefox as your default Web browser. It's much more secure than Internet Explorer with a lot cooler features. Not to mention you will be supporting the open source/free software movement.