I'm looking at either one and can't make up my mind. My husband and I want to travel and wonder if the 17" would be too "heavy, bulky, etc." I have a iMac desktop--20" for creative endeavors and a 17" desktop for business, so it seems I may have a hard time adjusting to the smaller real estate screen. The MBP would be used for both artistic and business combined. What are your opinions??????