Facebook (Scan/Filter Specific Words) of Posts within a group of members

This project requires a customer script/scripts and or software to work with Facebook. My Goal: I wish this project after completion to run a script that checks recent posts by members of specific groups for key words ie. (Laptop, iPod, Gold). Once those words have been found within a post, of the 20+ groups I wish this script to scan, it will notify me by either e-mail or an RSS feed based webpage, with a link to the post that the specific word was found, time stamp, and the description that was also posted. This code will require the implementations of tokens. Tokens will need to be implemented as Facebook requires only specific people within these CLOSED groups, they are not public, so they will require authentication to actively scan the page. The script should be able to be executed by time. Ie. Every 10 minutes it is to execute, scan, and than report the results. User friendly: I may add/subtract groups from this script, so instructions and or a admin control is a good idea. This script will run 24/7, and it does not matter if I need my computer on constantly, or if I require a server. On-going support: If Facebook in future change their structure, and the code breaks I will require support to get the script going again, on-going payment for more work is fine, as long as you are aware that you may have to later change scripts, but will be paid.