Halo XBox

I just won an Halo3 Xbox and a copy of the Halo 3 game at the MIXX IAB conference I’m at (put your card in the bowl and see what comes out). Whilst I’m keeping the game, I actually bought an XBox360 Elite about 3 weeks ago so do not really need 2 (at least I do not think i do). So I’m looking for creative ways to give this away or to raise some money for it in a way that is going to benefit someone/charity (Jayne..you can’t get it as it won’t work there!). Suggestions welcome in the comments or via email