Updating install packages

I have a http server that holds all the packages off my SuSE 9.0 CDs for remote installs. Is there an easy, automated method to update all the packages found on: http://www.suse.com/us/private/download/updates/90_i386.html I want to: 1) download JUST the packages listed as needing updating 2) put them in the directory I set up on the server 3) remove the old packages The only way I see to do this is one file at a time, without a bit of perl development, of course. What's the easiest way of doing this? Thanks, Ryan