Following on from Clint, Christer, and Valent who all detail the first things they do post install on a Linux system.. Here’s mine:-
Enable Medibuntu repository (see their site for details)
sudo wget http://www.medibuntu.org/sources.list.d/intrepid.list –output-document=/etc/apt/sources.list.d/medibuntu.list
sudo apt-get update && sudo apt-get install medibuntu-keyring && sudo apt-get update
Get the good (*) stuff
sudo apt-get install ubuntu-restricted-extras vlc mplayer w32codecs …