@IronFilm The D5200 is a good shout but wouldn't mind the D5300/D5500 for a few features such as WiFi and newer sensor. The second hand market like you said for D5200 would allow for potential B and even C cameras on the cheap. What lenses do you use on your D5200? Is the live-view / aperture thing really over blown? I am confused as to how you would change the aperture whilst shooting say a cake cutting or speeches and suddenly the lighting changes. Would getting out of live-view stop the recording? Sorry to sound clueless but I never had these short comings from the D800 and just seeing how I could effectively use the D5500 type cameras in a live shoot situation without always being able to predetermine the shot. @Ebrahim Saadawi all your points make perfect sense. The speed at which the footage can be cut in post is a bonus as allows for quick turnaround of small events. The ligther camera can also double up for any personal projects. I do think Nikon have a very unique feel and colour hence wanted to stick with my kit and not jump ship to a total GH4 set-up. @Liam I could not find a decent aperture ring zoom similar to the Sigma 18-35 so not sure and also the motor in D5500 will not auto-focus them in stills mode. The NX1 workflow would mean investing in a new machine to edit which I don't want to do just yet. @homestar_kevin good shout on the D5300 also as can be picked up cheap. Can you explain the 'Just pop out of live view, change the aperture based on the exposure meter, then pop back.' a bit more please in a shoot situation? At the moment I would like to keep Nikon and keep everything in one house and simple in post. If was to have something else to complement the D750 then the GH4, RX10, FZ1000 spring to mind along with GX7 or A6000 but would all require some work to match the look of the Nikon.