Okay, you've got two choices. We recommended heading to the gaming news page to check out the details regarding the Forza 2 auction house and new cars that have been announced today.
Here: http://gaming.hexus.net/content/item.php?item=8044
There are links within the feature to the HEXUS.tv trailer showing you how the auction will work.
If you like you can head straight to HEXUS.tv to watch the trailer.
Here: http://www.hexus.tv/show.php?show=52