If you don’t want to deal with all the hassle of dealing with modchips and firmwares and updating and the possiblity of messing up your XBox 360 visit RevolutionNEXT.net

They have representatives in the NYC area that can meet with you to pickup/deliver your XBox 360 and firmware flash it for you so you can play copied games. They do all XBox 360's and give you a free game with purchase of the firmware flash.