While the new 2.8 GHz E6300 is inexpensive, it is not yet on the support list for your motherboard (though it might still work). You couldn't play HD for what reason? CPU not powerful enough?
Yup, my cpu is only 1.8 GHz and the 8800GT is not very good with HD playback, but is awesome with gaming. I am also thinking about changing my mobo to a gigabyte g31 and try to overclock my existing e4300 (though im a newbie with overclocking). What do you think?