I need to replace my old laptop and I'm thinking of a MacBook with 2 gig of RAM. This will only be for image browsing and minor adjustments while traveling - it's not for heavy duty image processing or any color critical work. If it lets me back up my images to external drives and review my days take without feeling like it's running in slow motion, I'll be happy.
Given it's intended use, is 2 gig of RAM sufficient for running Lightroom, or should I go for 4 gig?