How-to set up weekly backup onto a separate HDD?

[Coume - Lubox.com]

Hello (again),

When I will have reinstall the new FC, I want to set up weekly backup on my vital data onto a separate HDD which is plugged though USB. I had this idea, since the nice powercut from next week which gave me lots lots of trouble to restart my FC computer giving Keernel Panic, it also explain why I cannot wait to clean everything an install FC2 :)

How can I do that kind of backup? Is there tools that can manage that? or should I juste use a basic cron that makes a tar.gz?
The annoying thing with tar.gz IMHO is that it will always backup everything, when it could be easier and far more quicker to have an incremental stuff to  backup only the modified files...

any idea and tips are welcome :)
thxs
Ludo
________________________________________________________________
http://www.lubox.com - http://forum.lubox.com
Email Services, How-To (Linux,PHP,...), Freeware...
Come have a look, and you can even drop a msg on the forum!