Since new Macbook came out, who's trading in their MBA for the new Macbook? I'm tempted to swap, but portability is my number one need. I will mainly use this computer for school and I lug it around everywhere. Mostly word, photoshop, music, games, etc. I have an iMac at home to do the heavy work. Power in the MBA has been a bit lacking and it does heat up fast. I wonder if I should just jump to Macbook since its only 2lbs difference.