little script for log watching

[Mike Egglestone <megglestone@heritage.sd57.bc.ca>]

Hi,

I would like to write a script that would
output to the screen the latest contents of a log,
and continue to do so until I abort the script.

For example,
I have squid running, and would like to see the latest additions
to the /var/log/squid/access.log as it takes place.

Something like typing the "tail" command over and over again or something.

Is this possible?
If its quite complicated, please point me to a nice script 
place on the web where I can learn about simple scripts.

Thanks
Mike