I have been thinking of getting a replacement for my old Powerbook 17". I don't need anything super powerful, since it's just a light duty machine. I wanted a Macbook Air, but it's not in the budget right now. I found this unibody Macbook refurb for sale at OWC for $679. It's cheaper than the Apple refurb, but should still do the job. I have always kind of liked the white Macbooks. My question for owners of this model is how does this model stand up? I know some older Macbooks had issues with yellowing, cracking, etc, so I was curious how the unibody models stand up to use. I won't be traveling with it too much, so that shouldn't be a problem. Also, how difficult is it to tear down for adding RAM, changing HDs, etc? I have torn down unibody MBPs, so I figure it is similar.