I read that the MacPro has a FSB of 1600MHz. However, the speed of the memory is only 800MHz. Does that mean the computer's speed is reduced to half due to the slower memory speed? If that is the case, what is the point of getting a faster cpu? Am I missing something? I read that some users have troubles in over clocking their MacPro because the RAM cannot be over clocked. Which company's RAM are better for overclocking? I heard that Samsung's RAM can be overclocked but when I asked the same question to Crucial, the guy told me that their RAM can't be overclocked. He even suggested me not to do so as the life time warranty is covered only under normal use. Anybody has experience with Samsung's RAM?