ISO Images from fully installed hd?

["Fernando Cacciola" <fernando_cacciola@hotmail.com>]

Hi,

I have Sarge successfully installed in a machine, using just the
netinst CD.
Now I want it on another machine... I can of course use the netinst CD
once again and wait for all the packages to download, but I was
wondering if I can somehow create a set of ISO images using the machine
were debian is already installed.

TIA