Screen & VNC - Joe Appuzo
Gdesklets/themes (How to make Gnome look like Mac OS/X!) - Alan Snyder
Using lvman, a front end to HAL for managing hotplug events - Renier Morales
Ice Cream (MP3 Stream filer), Script (as in /usr/bin/script) - Porkchop
S.M.A.R.T and Logwatch - Sean Dague