Here's my sources.list file. It's pretty basic, but it does the job. If you want to upgrade to Woody, change all the "unstable"s to "testing". I'm not sure about package conflicts between libranet and the stock Debian disto, so you may have to manually remove some packages(dpkg -r ) and install the stock debian version. I did a quick google search but didn't come up with anything specific on this.
# the main Debian packages. Uncomment the deb-src line if you
# want 'apt-get source' to work with most packages.
deb ftp://ftp.us.debian.org/debian/ unstable main contrib non-free
# the non-US Debian packages. Uncomment the deb-src line if you
# want 'apt-get source' to work with non-US packages.
deb http://non-us.debian.org/debian-non-US/ unstable/non-US main contrib non-free