The best mod would have to be moving the controller ports to the side of the faceplate with a hip pad lcd screen in the center of the faceplate and moving the power and eject buttons on the back. Shaving all the fins and cracks sanding off that crappy rough texture that the xbox has, shaving the base off the bottom of the box (slim it), lighting the controller ports, jewel, eject button and a window. Also puting a window in the hard drive and lighting it is pretty sick. And a pimp paint job to top it off, but thats just me.