I just received my brand new nehalem MacPro with 8x2.26GHz and noticed that H.264 encoding does not take advantage of all the power the machine provides. When I use HandBrake to encode a video in h.264 the CPU usage barely hits 60% max. The same goes for iMovie which only uses about 15% of the CPU when I am exporting a project. Is there a way to optimize h.264 encoding without buying the Elgato h.264 encoder?!