Backup recommendations

[Alexander Kushnirenko <kushnir@pccmu1.fnal.gov>]

Hi,

After quite a few disks died on me I start to realize that backup may be worth 
the effort :)  There are several backup programs in Debian, so could someone 
recommend one for our case:

4 computers serving like X-terminals with no users (yellow pages + /home area 
is mounted from another computer), we would like to backup only /etc, /root 
and some other configuration files.  We would like to transfer those files to 
another big computer on a special disk which is backed up daily.

Any suggestions?

Thank you
Sasha.