Well, the good thing about overclocking is that it gives you some overhead space. Like, if you ever wanted to, you dont have to go out and buy new parts. Its already there for you. Even if you dont want to, overclocking parts are usually a little higher quality and can take more of a beating, if you know what i mean.
If you cant order from anywhere else, then get the Corsairs, if you can, get the Team Group RAM from tankguys. The guys over there are very nice and will help you in any way possible. But i recommended the Team Group RAM because it uses good chips, thus some good overclocking potential, but just bump up the divider and a little VDimm, and that RAM will be flying while staying at the procesor's stock clocks.