You guys may already know about these tools. I'm downloading them right now to give it a try. I figured I'd share them with you hoping that some may have used them. So far, MirrorFolder has me the most intrigued.
http://www.techsoftpl.com/backup/index.htm
http://www.centered.com/
http://www.southrivertech.com/products/webdrive/index.html
MirrorFolder is a real-time mirroring and synchronization software to backup files on local/network/removable drive/disk from local hard disk. You can mirror your important folders, or even an entire drive, on another local/network/removable drive/disk either in real-time or in auto-synchronization mode.
http://www.techsoftpl.com/backup/index.htm
Second Copy® 2000 is the perfect backup product designed for Windows 9x/Me/NT4/2000/XP you have been looking for. It makes a backup of your data files to another directory, disk or computer across the network. It then monitors the source files and keeps the backup updated with new or changed files. It runs in the background with no user interaction. So, once it is setup you always have a backup of your data some where else.
http://www.centered.com/
WebDrive integrates a WebDAV or FTP server into the Windows desktop by mapping it to a network drive letter. Files are transferred by simply saving them to a drive letter - there's no need to run a separate FTP Client. WebDrive instantly web-enables any Windows application by providing the ability for these applications to directly open files on web servers. WebDrive can connect to WebDAV, FTP, and HTTP Servers supporting Microsoft FrontPage Server Extensions.
http://www.southrivertech.com/products/webdrive/index.html