4 sticks of 512 is better in dual channel... I wish somebody told me that when I got my first stick of RAM. If I knew that, I would have gone with 4 sticks of that platinum stuff that overclocks extremely well, but it is 512 MB. Oh well, my RAM is not horrible, and one day who knows... I may have 4 sticks of 1 GB in dual channel... that'll be a beast!