I would advise against the rolling bags unless you are never going to venture off carpet of smooth interior floors. The 'wheels' are too small and too had which means that even on normal pavement your kit is getting one hell of a dose of vibration.
At some stage of our photographic journey we all become bagologists and one of the problems associated with that is that if you have the luggage space you will find heavy crap to fill it with.
Less is more.
"Photography was not a bastard left by science on the doorstep of art, but a legitimate child of the Western pictorial tradition." —Robert Galassi