As I mentioned in Chubbs' 'reverse camera' thread, I have been asked to look into making a forward facing camera kit for the 370Z.
Obviously, you will need to buy a forward facing camera - NTSC, non flipped image, and without guide lines (since the Z will add them).
To be honest, that's all you really need because you can plug that into the video input in the centre cubby hole and select 'Aux' on the head unit.
However, I am going to try a video switcher that latches into the reverse camera input so it will automatically select the front & rear camera when you are shuffling the car in a tight spot. You will still need to flip a switch to enable the front camera but the rest will be automatic.
I've done a wiring diagram, have all the components (albeit a temporary camera) and will be having a play with it all soon.
More news as it happens