Just curious to know has anyone ever Swaped there standard 6n key for a newer one like the one in the photo bellow ? And if so what's involved in doing this ? Thanks in advance 

You can get the "Flip key" if you buy a "R-click" remote central locking kit, they come with the flip fob, you then need to get the blade cut to your key profile (Some Timpsons will do this for £15) then you have to carefully remove the immobiliser transponder chip from your original key and put it into the flip case