Here's my stuff. They say that GSkill can be overclocked to 300mhz.
http://img151.imageshack.us/img151/4641/untitledee4.gif
EDIT: I chose to buy the Corsair ones.
http://img151.imageshack.us/img151/4641/untitledee4.gif
EDIT: I chose to buy the Corsair ones.