59393 Website monitoring script

I am looking for someone to create a website monitoring script for me. I want the script to be able to check a website url to ensure that it's online and that all content is being loaded without any errors and to keep a report of all this data. I want this to be a free and paid membership service. I want people to be able to sign up by entering an email address and having a username and password assigned and emailed to them. It would be good to use the email address as the username and a randomly generated password. There should also be a password finder for those that forget their password. I want there to be three levels of membership: 1) Free - I want the free service to check 1 url once per hour 2) Silver $2.99 P/Mo - allowing 5 urls to be checked every 5 minutes 3) Gold $4.99 P/Mo - allowing 25 urls to be checked every minute There should be a control panel and report page for users to log into, to add/change their url's that are being monitored and 15 days of status reports. The reports should be overwritten after 15 days to avoid taking up too much space. There should also be a full admin backend that shows all accounts and all urls that are being checked with the ability to add/delete/upgrade/downgrade accounts. I would like this to be coded in PHP and mySQL and cron jobs for all the monitoring. The free account should have to login to receive their stats and the silver and gold accounts would have the ability to have the reports sent to their choice of up to 3 email addresses or view them from their control panel. I would like all pages to be templated so I can build the html around all pages easily.