My outfit consists of a 16x20 camera (33 lbs.), 3 filmholders (18 lbs.), a heavy-duty tripod (21 lbs.), and miscellaneous items (lens, darkcloth, etc.). Needless to say, I won't be backpacking. But I'd like to put the camera and holders in cases that can be wheeled around like airport luggage. I don't want to be restricted to "roadkill" (shooting from next to the car). Should I be looking at hard cases such as Pelican (caseman.com has a good selection in the required sizes) or soft cases such as Lightware (strebor.com can custom-make such cases in the required sizes)? Thanks in advance for any input.