Ah, what's a Halo game release without midnight launch events? Unsurprisingly, both Best Buy and GameStop will be hosting midnight launches for Halo 3: ODST. While Best Buy will simply be selling the game at midnight, Monday, September 21, GameStop has some festivities planned. According to Team Xbox, activities planned include RC Warthog and "pedal-powered go-cart" races, Halo trivia contests as well as a Halo cosplay contest. Before you don your favorite Cortana costume, you should call your local GameStop to see when and if festivities begin (most stores will begin at 9:00pm local time). Joystiq has also been told that "some" Game Crazy locations will hold midnight launch events. You'll have to contact you're local store to find out. For a list of all participating Best Buy stores, click right here. For participating GameStops, download this PDF. Or, if you don't feel like waiting in line for three hours, you could always try Wal-Mart. Source -- Best Buy - Halo 3: ODST Midnight Store Opening Locations! Source -- GameStop - Halo 3: OSDT Midnight Openings (PDF)