Too much time on your hands?

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.