Webget
Webget is a Perl script that downloads a list of specified URLs at night. It is only useful if you do not have to pay on a per-minute scale for your Internet connection; its advantages are that you will reach higher speeds with most ISPs, and you do not have to download while you are using your Internet connection for other things too. It consists of two files: a CGI-script that makes a database from a list of URL's that you enter with your browser, and a Perl-script that parses the database and calls wget to download all files.