im currently in the process of building one computer and upgrading my current computer, i got 2 new sticks of 512mb pc3000 and i have 2 sticks of 512 pc2700 already. I was originally planning to keep 1.5 gig for my self and 512 for the other computer im building. Im wondering if tis worth it to add the pc2700 to the 2 pc3000. I have been told(correct me if im wrong) that it would clock all of it down to pc2700, so would that be worth it? i am a heavy graphic designer(rendering in c4d and what not) and play some pretty graphically intense games as well if that is a factor. As you can tell im not extremely knowledgable on how this stuff works exactly so any help would be appreciated.