Thanks @TomG
I am actually rendering all locally, I just use Backburner as a way to que up all my work throughout the day to then render overnight. So I would have assumed (which is likely totally my ignorance to this) that it would just be like a "baked" version of the 3DS Max file, just re-opened up and rendered.
I'll certainly take another look at this and I certainly recognise the links to using a network of machines for the simulation... maybe that'll help me when I can convince myself that I need another machine!
Thanks again :)