I'm considering an upgrade to 8 GB of RAM, as the 4 GB sticks are very cheap at the moment. Would my MB Pro benefit from such an upgrade? These are my stats after about a day of casual usage (mostly browsing, dealing with office stuff etc.): PhysMem: 878M wired, 1963M active, 903M inactive, 3744M used, 350M free. VM: 211G vsize, 1092M framework vsize, 512419(0) pageins, 412(0) pageouts The thing I'm concerned about is the rather low amount of free memory after doing practically no heavy computing. Would I need to quit my running programs in order not to experience any slowdowns in say Aperture? On the other hand, wouldn't it take longer to hibernate with 8 GB of RAM?