Then go over to the Really Slick Screensavers page and port them to Mac OS X. There are a few ports here, but I'm not sure the list is complete.
Other ports:
Geek Guidance Advised (GG Rating)
I've put up a new HOWTO: Enabling VLAN support in RedHat 9.0, which might be useful for anyone deploying RedHat in a 802.1q network. It's minimal, but it provides all the basics.