Hi, guys. Just need some comments/opinions in traveling with 17" MBP. I'll bring a MBP with me when I backpack alone later this year. Is 17" MBP too bulky/heavy (almost 7 lbs)? I was thinking to get a 15" model but found a pretty good price of 17" model. So I want to hear some opinion. Also, is it a good idea to use a notebook on the beach or chalet's porch facing ocean? Comments from people with 17" MBP/backpacking experience are especially welcome. Thank you.