Hello all, I have a (2007) 17-inch MBP with 2.66 GHz, 160gb HD, 2gb ram and I am thinking of selling it in order to buy a new 13-inch MBP, 2.4 GHz, 4gb ram and a 250gb HD. I only use the notebook for writing papers, and researching online; maybe some movie watching, but that's about it. Form factor is the only issue for me as I prefer the smaller form factor, buy I do not want to be a sucker by selling one for the other simply due to form factor. Any advice would be appreciated. Thanks.