YUM has got to be one of the best tools ever..
I have setup a local repository for the base RPM's and I have mirrored my local mirror for updates, then I configured my laptop and desktop to use the local repo's..
Its awesome, anything I want is just a "yum install" away and I don't have to wait hours for it to download over my ISDN line..
If you have more than 2 or 3 PC's running FC I strongly recommend setting up a local repo..
Later..