I normally keep the D70 in a "holster" type bag that's just big enough for the camera, kit lens, charger and spare battery/memory cards. For long trips, I have a big camera bag (Lowepro Nova 5) that doubles as my "personal item" for airline carryon purposes. It's large enough to hold a couple of SLR bodies, 5 or 6 lenses, 2 flashes, and a ton of accessories. I use the pouch that used to be for film to hold various stuff like sunglasses, passports, papers etc.