PHP / HTML Parser

Using the php dom html parser

To parse a specific page from a site contain list of articles.. The idea is to go thru each link and parse the content of the article and the author name (the content and author name from each page is defined by unique div class or child number of div) And store it in the mysql database

The parsing should be added to a cron job to be launched daily.. Each time we run the parser it should:
1) Parse the page and linked articles -
2) Check the page if there is new articles and compare it to the current database entries (to avoid duplicates)
3) store it in the database

This is phase one of the idea i have, so who ever start this will continue on the next phases which we will be priced one by one

Regards