This is my first post on the site so go easy on me please. I am also new to apple products other than iPods, but will get the newest iphone when my phone contract ends and want a mac computer for the below reasons: I'm looking to get more into photo and video editing to advance my career in an industry where it can be beneficial. I'm looking around the forums at different threads and doing research and it seems like the 17" MBP is the main option for video and photo editing in apple's line of computers. I would like a laptop that is easier to transport around but gets the best performance for the dollar. Keeping in mind that I have no budget for this (spending whatever I want)....would I be able to upgrade a 15" MBP to the same/better specs than the 17" MBP and be fine with the smaller screen size? I would also be able to have an external monitor display 75% of the time, making the screen not as important. Is there that much of a noticable difference in weight between the 15" and 17" MBP's? In the end, would I be able to get by with the 15" MBP?