Wife and I got a 15" MBP last year for our anniversary last year. We both love it, though now we "fight" over it while we finally get to relax in the evenings. She has hinted about wanting an Air, since she does think the MBP is a lil heavy for her. I got the beefiest one at the time since I do some Parallels and development stuff on it as well. So trying to decide on the 11 or 13. Hoping a 8GB / 256 13 shows up on the refurb site before I pull the trigger as I think that is what I want to get. The 13 gives you better battery life, correct? Has an SD slot where the 11" doesn't? Also, the RAM is soldered on, so stuck with that either way? But the SSD can be upgraded if need be in the future? Or has that changed as well? Or maybe I should look at a newer 13" MBP refurb, since they are a little lighter, but I am guessing the battery life wouldn't be as good as the 13" Air. She doesn't do anything power hungry. Mostly surfing, email, documentation etc. Every once in a awhile she will play Sims3 or do some photo/video editing. I am thinking the i5 will be plenty for her as that is what we have in our latest iMacs. Definitely should get the 8GB RAM I would think. Still trying to determine if 128GB SSD would be enough. I am leaning towards no there as well. I need to go to Best Buy to look at the 11" vs 13" as the Apple Store is too far away for just a look as I hope to buy from the Refurb site.