iWebGet is an all-purpose high-speed webspider and powerful offline browser. It allows you to download entire websites and download web pages to your local hard drive and browse the websites locally. You may try iWebGet before buy, its trial version is available in download.

• Latest version of  iWebGet :  iWebGet Standard Version 1.5 / iWebGet Professional Version 1.5  (2009-10-16)
• iWebGet is an all-purpose high-speed webspider and powerful offline browser for getting data from the Internet.
• It allows you to download entire websites and download web pages to your local hard drive.
• It allows you to browse the websites locally.
• It combines powerful features and a convenient interface.
• New Project Wizard will allow you to quickly specify the website download settings.
• It can launch up to 50 simultaneous retrieval threads, access password-protected sites, filter files by size and type, search for keywords, and much more.
• The most fully-featured and robust webspider available, iWebGet handles today's more complex websites flawlessly.
• Capable of reading HTML 4.0, CSS 2.0, and DHTML, iWebGet is the powerful webspider that really finds all of the files on all of the sites.
• Use this powerful offline browser to record websites and store them locally until you are ready to view them.
• Save complete copies of your favorite sites, magazines, or stock quotes.
• Companies can transfer their intranet contents to staff computers, create a copy of companies' online catalogs and brochures for sales personal, backup corporate web sites, print downloaded files.
• Individuals can use iWebGet to save complete copies of their favorite sites. 
• Developers use this tool to analyze websites structure, find dead links on a website.

3d2f.com editors have called the program "the most promising in its class".