deb http://ftp.us.debian.org/debian/ stable main
deb-src http://ftp.us.debian.org/debian/ stable main

deb http://security.debian.org/ stable/updates main

#deb http://www.backports.org/debian/ stable kernel-image-2.6.6-i386

#Testing
 #deb http://ftp.us.debian.org/debian testing main non-free contrib
#deb http://non-us.debian.org/debian-non-US testing/non-US main contrib non-free

#Unstable
deb http://ftp.us.debian.org/debian unstable main non-free contrib
#deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free