SiteSucker for Mac OS X
SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet. It does this by asynchronously copying the site's Web pages, images, backgrounds, movies, and other files to your local hard drive. Just enter a URL (Uniform Resource Locator), press return, and SiteSucker can download an entire Web site.
SiteSucker can be used to make local copies of Web sites. It can download files unmodified or "localize" the files it downloads, allowing you to browse a site offline.