My Thinktank Streetwalker Pro has been pulling double duty hauling around my 35mm and RZ kit for about 2 years now. I'm really sick of switching out kits based on what I want to shoot that day. I just pulled the trigger on another Nikon F5, and I need to move up to a bigger bag, possibly the Streetwalker HD. I was originally going to have the streetwalker pro hold my RZ kit, but its also getting a little small after adding an AE prism and a 4th back this week. Thinking about giving it to my girlfriend to hold her digital crap, and getting a 2nd streetwalker HD, but I'm wanting to see what everyone on here thinks I should be looking at as far as a bag goes. I do a lot of hiking so I would want a backpack type bag. I carry around a rather large and heavy Bogen 3036 tripod, so a bag that I can strap this to would be great! So far I need to haul around... RZ body w/110 & back 3 extra backs Polaroid back 180mm lens 50mm lens space for a 3rd lens Bellows hood in future Power winder in future AE prism meter 6-10 tools of film 6 77mm filters misc stuff.