E3: 'Halo 3' trailer

Master Chief fans were finally treated to a trailer that actually shows off gameplay, last night at Microsoft's E3 press conference. Microsoft VP Peter Moore gleefully announced that Halo 3 is part of the three biggest game franchises today (the others being Grand Theft Auto and Madden NFL) and that if you plan on playing all three, you'll need to own an Xbox 360. Halo 3 will be released September 25. Also look for Halo 3 Special Edition Xbox 360, which will include a spartan-green Xbox 360 with matching accessories and a play and charge kit.

UPDATE: If you're having difficulty playing the embedded video above, try here instead.