I will pick keyboard and mouse any day over the XBox controller for games like Halo

Agreed. I CAN NOT do FPSes on console, other than Metroid for some reason. I get sick playing Halo, which has never happened to me with any FPS. Does anyone know if it's possible to hook up a mouse and keyboard to the XBox? I know we can on our Dev Stations, but i would love to play Halo with a mouse.