Navegando por Commandlinefu me encontré un comando para descargar webs completamente.

wget --random-wait -r -p -e robots=off -U mozilla http://www.example.com

# Download an entire website
#
# -p parameter tells wget to include all files, including images.
# -e robots=off you don't want wget to obey by the robots.txt file
# -U mozilla as your browsers identity.
# --random-wait to let wget chose a random number of seconds to wait, avoid get into black list.
#
# Other Useful wget Parameters:
# --limit-rate=20k limits the rate at which it downloads files.
# -b continues wget after logging out.
# -o $HOME/wget_log.txt logs the output

Yo lo voy a usar para mover mi viejo blog en Wordpress a una versión en html.