HELP! auto Web data download?


i'm part of a class project and was wondering if it was possible to
automatically download tab/comma delimited data from the web page

- i mean have netscape automatically open up at night
- have it read off a file list of URL's to goto
- goto each URL 
- download/copy and paste the data to the local machine by creating or
appending the text on the URL webpage to a data/textfile on the

Is this possible at all???? Is it possible to do ANY PART of this?
need java to do this or some software that does something similar???

thanks for any advice