Cheers for the server fixes, had a little go and all seems to be working now, think most of my issues were to do with a lack of skybox. Using a cube skybox with black tint and alpha turned down should probably do the job for a lot my scenarios.
The updated scripts you posted caused me a few script error problems, perhaps because my camera is not a child of anything, but by attaching the makeSyphonServerWork script to an empty game object that is a child of the camera I get rid of the errors.