Talk about a chance to do something big. An auction will be held this coming February 17th, allowing one lucky winner to have a speaking cameo role for Bungie's upcoming epic: Halo 3.

The auction is part of a charity event for Hollywood Arts, a non-profit organization that uses the arts to reach out to at-risk teens and the homeless. The proceeds of this auction will be used to renovate an art and media center in Los Angeles.

In addition to the cameo role, other items up for grabs will be signed copies of a variety of games, a tour of Bungie studios and a statue of Master Chief himself.