Hi, I'll just get to the point. Our family has two MacBooks, one is mine and one is just for everyone. The MacBook that belongs to me has only 1Gig of RAM (it is a 2008 model) and the family one has 2Gigs of RAM. The family computer's main use is email and internet, maybe some picture editing with iPhoto here and there but that is all. I use my computer for memory intensive programs and I use them more then one at a time. I was wondering if there would be any performance decrease in the family computer if I were to switch out the RAM's? And I know there will be a bit, but will it be noticeable?