I have golds. They OC pretty well and are fast. I don't think you can improve on DDR2 much more anyways. Those particular modules have Micron D-9s. In fact I'm pretty sure most of OCZs ram does, except for the value models.
but I agree, that's why I love my OCZ sli sticks, best ram I've ever had! 1200mhz at 2.18V...clock just as well as my ballistix but do not die and do the clocks at lower voltage