Microsoft has confirmed that three editions of Halo 3 will be available when the game launches later this year.
First up is the plain old Standard Edition which is comprised of the standalone disc, plus a box and manual.
Then there's the Legendary Edition which will be released "in limited quantities", according to a statement. It will come with a collectable Spartan helmet case, Halo 3 storyboard art and two bonus discs.
And last the Limited Edition version of Halo 3 which will come in a shiny metal case. Along with the first bonus disc from the Legendary Edition, you'll get a Halo fiction and art book which features a guide to the game's universe and previously unseen material.