il source.list:
deb http://ftp.de.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.de.debian.org/debian/ squeeze main
deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free
#debian multimedia
deb http://www.debian-multimedia.org/ testing main
#Videolan
deb http://download.videolan.org/pub/videolan/debian/ sid main
deb-src http://download.videolan.org/pub/videolan/debian/ sid main
#Amule
# deb http://www.vollstreckernet.de/debian/ testing amule-stable wx
# deb-src http://www.vollstreckernet.de/debian/ testing amule-stable wx
#Debian Unofficial
# deb http://ftp.debian-unofficial.org/debian/ testing main contrib non-free restricted
# deb-src http://ftp.debian-unofficial.org/debian/ testing main contrib non-free restricted