Official Play.com add-on.
Play.com is one of the most visited UK online stores selling DVDs, games, music, books, clothing, electronics and toys with free delivery on everything to the UK and Europe.
The PlayPriceTracker sidebar displays Play.com search results showing the latest prices, ratings and availability for products. The search is performed by highlighting words on any web page, right clicking and selecting the 'Search Play.com Price Tracker' menu option.
When you are on a Play.com product page and the PlayPriceTracker sidebar is open then you can specify a price for the product. The PlayPriceTracker will store all your tracked products and notify you when they become available for the price you have set.
You also have the option of being notified when a product comes into stock.