Hi guys, i'll be traveling to a 20 day trip to Japan in early May and i have doubt. At first, most of my transportation in Japan will be by train and i'll be sleeping in hostels / friends house, i'll be doing a lot of street photography/landscape/portrait photos. My gear (i'll buy this new body and lenses in Japan) will be Nikon D800 or a Canon EOS 5D Mark III with Tokina 16-28mm F/2.8, Tamron SP 24-70mm f/2.8, Tamron 70-200mm f/2.8 and, maybe, a 50mm f/1.4 lenses (ok, i know that's a lot of glass and i should carry/buy less lenses). Plus, Benro C0681TB00 Tripod with B00 Dual Action Ballhead and UV Protector, Circular Polarizer and ND filters. A macbook pro 15" will also travel with me and will be carried with the camera/lenses trough the travel and city walks/hiking-trekking. Should i travel with a backpack, maybe a travel pack with 70l+10l (Deuter Quantum 70+10 or other similar, the attached daypack is dispensable i guess, then, i'll choose a multi-day backpack) and a daypack (Kata Bumblebee PL-222 / Crumpler The Sinking Barge Deluxe / F-Stop Loka pack with medium pro ICU) for camera / lenses / food / jacket or should i choose a trolley luggage (Deuter Helion 80)? Do you guys would rather choose to travel with backpacks or with luggage?