I have been asked to develop a backup solution for a small office
consisting of one windows xp pc, one windows xp laptop and an ibook.

My solution is as follows:

Set up a server with debian sarge with rysnc and samba. Set up samba to
map the root directories of each of the above computers. At 3pm in the
afternoon run rsync which will backup each of the computer's root
diretcories to a directory on the debian server.

At 3am rsync the debian server's root directory (exluding any samba
shares) to an external hard disk in a usb enclosure. The next day a user
will replace the external hard drive with a fresh one and take the fresh
backup disk home as an off site back up. This procedure is cycled each
day with three external hard disks. There will
always be a disk off site containing a full backup.

Please critique my backup solution. Please point out any flaws you can
see.

Thanks