http://www.pcworld.com/downloads/file_description/0,fid,20520,00.asp

WinHTTrack Website Copier v3.32-2

"Many of us have watched our favorite small sites go out of
business and start delivering error 404s. Whether you want
to archive sites you visit, copy research information, or
back up your own Web site, this handy utility will do the
trick. WinHTTrack Website Copier lets you copy or mirror
entire Web sites, and while the interface isn't particularly
inviting or user-friendly (neophytes may wish to consult the
useful online help), it is adequate and walks you through
the process of copying a site or pages. You can set various
parameters (for example, whether to include images; exclude
specific URLs; or stay within the URL domain, as opposed to
following external site links.) The software is efficient
and notifies you of problems encountered. It handled with
aplomb the JavaScript code on one of the sites we downloaded."