Although Nuke can read FBX files, it’s something reassuring about open text file formats, so I have created an LScript that creates a chan file from the selected item in LightWave.

http://vimeo.com/moogaloop.swf?clip_id=8180471&server=vimeo.com&show_title=0&show_byline=0&show_portrait=0&color=ff9933&fullscreen=1

Download LScript