Get a pretty good idea of the auction house value of any item that you mouse over during game play. Currently data is gleaned from http://allakhazam.com and http://wowhead.com whose data is manifested in the form of related "data source" addons called GoingPrice_Allakhazam and GoingPrice_Wowhead respectively. Get at least one of these addons together with this GoingPrice "base" addon or all you will get is the message: "GoingPrice version X.X.X Loaded." in the chat box.

Later versions of GoingPrice might include more sources.

GoingPrice now uses Blizzard's AddOn options panel to configure the display and memory usage of data source statistics.

Check out the new GoingPrice video at http://goingpriceaddon.com/video