PS3 Stock Tracker

I am in charge of a website that covers the next-gen console, PlayStation 3. This next-gen console is not expected to be released until Fall 2006. I need a script that will tell my visitors when a store has the PlayStation 3 in stock, and I would like for them to be able to signup and receive notification via e-mail or cell phone text message with a direct link to the product purchase page. For an idea of this head to PS3StockTracker.com. This script should also be able to find the cheapest prices for the console, games, and accessories from Amazon, Best Buy, EBay, Target, EBGames, and other companies that sell video games. This part is basically a compare prices section. An example of this can be found at [login to view URL] or [login to view URL] The last thing this script needs to do is show what stores have available preorders for the PlayStation 3. An example of the preorders can be found at iWantAPlayStation3.com. I want to let you know that the console has not been released. No preorders are being taken at the time being, because no final price has been announced for the PlayStation 3.