Seems like Deathscytherulez got the RAM ocing part covered
I'll see about throwing some more in about timings, tidying it up a bit, and u can sticky it if you really want Rob.
edit: and yes I have to agree with death, Mushkin makes some of the best RAM out there. Even their lower-performance RAM can outperform some manufacturer's gaming RAM (believe it, I've heard of ppl buying Mushkin Green and getting some amazing results). Also, while you can easily get RAM with better timings than that for more money, if you are running an Intel it won't make that much of a difference, so grab that RAM while you can!
(If I wasn't buying Rbstr's RAM I would buy that stuff in a second!)
Oh, and I edited my timings section a bit to clarify the fact that lower timings are better.