Amazon is having a Gold Box day for Xbox 360 games. That means lots of great games at super cheap prices for a short window of time. We'll update this throughout the day, but I've bolded the clues which I think will lead to co-op titles.
4AM PDT -- Fallout 3 Collector's Edition 6AM PDT -- Call of Duty World at War ($39.99) 10AM PDT -- Ace Combat 6 ($19.99) 12PM PDT -- Battlefield Bad Company 2PM PDT -- Namco Museum 3PM PDT -- Halo Wars Limited Edition ($59.99) 4PM PDT -- "Give me some hi-hat!" - Rock Band 2 6PM PDT -- "Shaken, not stirred."