My camera setup: a mirrorless camera w/ extra battery & lenses: wide, low aperture,& a zoom
Kindle
11" MacBook Air
NewTrent Powerpack USB Battery for charging electronics. Has two USB charging ports & enough juice to recharge an iPhone about 5 times; such an epic accessory. Highly recommended.
Backpack
Osprey Farpoint 70L ~ Has a zip off daypack; my stuff wouldn't nearly fill the whole bag but having the extra space allows easy packing and retrieval of stuff; and would allow room for souvenirs purchased (preferably during the last few days of the trip). Could use bigger water bottle pockets, but otherwise very high quality gear.