Voici les paquets indispensables de Ubuntu :
a2ps                     GNU a2ps - 'Anything to PostScript' converter
audacity                 A fast, cross-platform audio editor
bash-completion          programmable completion for the bash shell
bless                    A full featured hexadecimal editor
build-essential          Les compilateurs de base
debhelper                helper programs for debian/rules
devscripts               Scripts to make the life of a Debian Package maintainer easier
dupload                  utility to upload Debian packages
fakeroot                 Gives a fake root environment
flashplugin-nonfree      Adobe Flash Player plugin installer
jnettop                  View hosts/ports taking up the most network
language-pack-fr         translation updates for language French
language-pack-fr-base    translations for language French
ldap-utils               OpenLDAP utilities
lm-sensors               utilities to read temperature/voltage/fan sensors
lshw                     information about hardware configuration
lsof                     List open files
ncftp                    A user-friendly and well-featured FTP client
manpages-dev             Manual pages about using GNU/Linux for devel
mencoder                 MPlayer's Movie Encoder
mplayer                  The Ultimate Movie Player For Linux
msttcorefonts            Installer for Microsoft TrueType core fonts
myspell-fr               The French dictionary for myspell (Hydro-Quebec version)
netcat                   TCP/IP swiss army knife
netpbm                   Graphics conversion tools
ntfs-3g                  read-write NTFS driver for FUSE
ntp                      Network Time Protocol daemon and utility programs
ntpdate                  client for setting system time from NTP servers
openoffice.org-l10n-fr   full-featured office productivity suite -- French language package
php5-cli                 command-line interpreter for the php5 script
php5-ldap                LDAP module for php5
php5-mysql               MySQL module for php5
poedit                   gettext catalog editor
sensors-applet           Display readings from hardware sensors in your Gnome panel
snmp                     SNMP (Simple Network Management Protocol) applications
subversion               Advanced version control system
tcl8.4                   Tcl (the Tool Command Language) v8.4 - run-time files
tftpd-hpa                HPA's tftp server
thunderbird              mail/news client with RSS and integrated spam filter support
thunderbird-locale-fr    Thunderbird French language/region package
tofrodos                 Converts DOS <-> Unix text files, alias tofromdos
tk8.4                    Tk toolkit for Tcl and X11, v8.4 - run-time files
traceroute               Traces the route taken by packets over an IPv4/IPv6 network
ttf-mscorefonts-installer Installer for Microsoft TrueType
unison                   A file-synchronization tool for Unix and Win
unison-gtk               A file-synchronization tool for Unix and Windows
unrar                    Unarchiver for .rar files (non-free version)
vim                      Vi IMproved - enhanced vi editor
wireshark                network traffic analyzer
wmctrl                   control an EWMH/NetWM compatible X Window Manager
xvnc4viewer              Virtual network computing client software for X
apt-get install a2ps audacity bash-completion bless build-essential compizconfig-settings-manager debhelper devscripts dupload fakeroot flashplugin-nonfree jnettop language-pack-fr language-pack-fr-base ldap-utils lm-sensors lshw lsof ncftp manpages-dev mencoder mplayer msttcorefonts myspell-fr netcat netpbm ntfs-3g ntp ntpdate openoffice.org-l10n-fr php5-cli php5-ldap php5-mysql poedit sensors-applet snmp subversion tcl8.4 tftpd-hpa thunderbird thunderbird-locale-fr tofrodos tk8.4 traceroute unison unison-gtk unrar vim wireshark wmctrl xvnc4viewer

Voici les widgets indispensables :
Keyboard indicator
System Monitor