Hi ezanih
I have not done a long animation in maya yet but I have looked into it as I will in the future. What I suggest is first make a story board to set out the main parts of your flythrough, then create your maze in full but in sections (each section having its own layer). The size of the section will depend on how much your system can handle and what the camera can see. This should allow you to have one continious flythrough turning on and of layers as you pass them.......I hope this make sence.......dave