/etc/apt/sources.list
# backport sources in here for dovecot
#deb http://www.backports.org/debian etch-backports main contrib non-free

deb http://ftp.debian.org/debian/ etch main non-free
deb-src http://ftp.debian.org/debian/ etch main non-free

deb http://security.debian.org/ etch/updates main contrib non-free
deb-src http://security.debian.org/ etch/updates main contrib non-free

deb-src http://http.us.debian.org/debian sid main contrib non-free

--------------------------------------------------------------

$hostname:/pwd# aptitude install build-essential fakeroot devscripts

Reading package lists... Done
Building dependency tree... Done
Reading extended state information       
Initializing package states... Done
Writing extended state information... Done
Reading task descriptions... Done         
Building tag database... Done    
The following packages are unused and will be REMOVED:
  libapr0 libasn1-6-heimdal libdb4.1 libfontconfig1 libgssapi1-heimdal 
  libkrb-1-kerberos4kth libkrb5-17-heimdal libmysqlclient12 
  libroken16-kerberos4kth libsasl2 libt1-5 libzzip-0-12 php4-common 
  resolvconf xlibs-data 
The following packages have been kept back:
  apache-common apache-perl apache2-mpm-prefork apache2-utils 
  apache2.2-common bsdutils cpio libapache-mod-perl libapache-mod-php5 
  libapache2-mod-php5 libc6 libc6-dev libmysqlclient15off libpcre3 libpq4 
  libxml2 locales mount mysql-common mysql-server-4.1 php5 php5-common 
  php5-imap php5-mcrypt php5-mysql util-linux 
The following NEW packages will be installed:
  devscripts fakeroot 
0 packages upgraded, 2 newly installed, 15 to remove and 26 not upgraded.
Need to get 482kB of archives. After unpacking 2818kB will be freed.
Do you want to continue? [Y/n/?] n
Abort.