I brought my D700/MB-D10, 28-105D IF, 70-300 D ED, 24mm, 50mm and an SB-28, battery charger, eneloop AA & charger, laptop, card reader and mouse on vacation (holiday) to Oahu, Hawaii. Camera in a camera bag, computer in a computer sleeve in a backpack (with cables and accessories) when traveling to and from.
Daily use, the D700/MB-D10 with 28-105 attached, on a sling. I carried a backpack for miscellaneous items including water. All other items were kept lock in the hotel safe. In the evenings, I had the SB-28 attached and slung on my person. When I anticipated using it, I had the 24mm in a pocket (cargo shorts) or in a wrap in my backpack. Never used the 70-300 or the 50mm...more because I didn't want to carry more stuff with me.
I am seriously considering purchasing a Nikon V1 kit as a small, light travel kit.