at mattlock has stated its not imperative that you run at 1:1 ratio most systems do seem to run their best performance when set-up like that, but it not craved in stone
besides with 1333mhz FSB systems they have the ability to outrun the speed of DDR2-800 for the first time, so many uers will be unlinking the cpu clock / ram clock
enjoy
P.S. you got a real nice OC going there Mattlock >>>>

well done