Hi, I have a 13 inch MacBook and I can't decide whether I should get a 15" MBP, 17" MBP, or a 27" iMac. I thought maybe you folks out there could help me. TO answer some of you questions that you may ask, I travel 1-2 times a year. I occasionally go around the house. One of the reasons I am asking is because I can't decide desktop or laptop. One of my questions are, Is the 17" too big to carry around? Thank you! Help much appreciated. If you have any more questions feel free to ask them (well this is a forum).