Hi all...was hoping for some advice. I have a a Mac Mini w/ C2D 2.0 and a Macbook C2D 2.0 (late 2008 all aluminum-picked up used for a great deal). They are virtually identical machines. My mini has 4 gb and an upgraded 320gb 7200 rpm drive. In the interest of saving money, I was thinking of buying the 8gb memory kit and installing that in my Mini and pulling the 4gb from the mini and installing it in the Macbook. (I use Aperture, rip the occasional movie, etc), it's the workhorse for now until I can pick up an iMac or Mini server. Do those of you using similar computers notice an improvement going from 4-8 gb? Is it worth it to upgrade both to 8 gb? The laptop is mostly for a high school student for word and powerpoint as well as email and browsing... I was more or less convincing myself that the jump from 2-4gb will improve the laptop enough to keep him happy for a while.