Joel,
as a person who heavily relay on the install docs, I'm happy to learn that you care about debian.
<Install docs work for Debian sid>
Sid is the unstable distribution, the one "where active development of Debian occurs. Generally, this distribution is run by developers and those who like to live on the edge." (debian.org/)
Why not woody or sarge? Personally, as a beginner, I do not like to "live on the edge."