Import FBX (ascii) scene into Nuke. It can import all transform nodes, geo, cameras and lights with all parent connections. 
1) Copy file to nuke/user folder.

2) Add this lines to menu.py:
nuke.menu("Nuke").addCommand("File/Import FBX", "nuke.tcl('ImportFBX [get_filename openFBX]')")

or simply download my drop.tcl for importing when drag'n'dropping.

This is the first version and it hasn't dialog window for selecting custom objects from FBX.
It tested only with Maya and Houdini FBX export.

v1.1
Fixed some bugs with wrong geometry transform.
Add two buttons on Scene node: "Read from file On" and "Read from file Off".

... This script is not working on Nuke 5.2v1 because of some strange bugs(?) on FBX-capable 3d-nodes.