HTTrack is an easy-to-use offline browser utility. It allows you
to download a World Wide website from the Internet to a local
directory, building recursively all directories, getting html,
images, and other files from the server to your computer. HTTrack
arranges the original site's relative link-structure. Simply open
a page of the "mirrored" website in your browser, and you can browse
the site from link to link, as if you were viewing it online.

HTTrack can also update an existing mirrored site, and resume
interrupted downloads. HTTrack is fully configurable, and has an
integrated help system.

WWW: http://www.httrack.com/
