I finally got around to uploading some of the footage I shot in Mexico in Feb and May of this year ...
Temple of Doom (Aka Calavera) -- Madonna & Canyon Lines
http://www.vimeo.com/1253073
Nohoch Nah Chich (Giant Birdhouse)
http://www.vimeo.com/1102214
And Dos Palmos (Downstream towards Cenote High voltage)
http://www.vimeo.com/1983565
All shot in an FX1 with dual 50W lights. The Nohoch video also used an 18W light held by the diver, but I dont think it was hugely effective so I will be trying the 24W handheld HIDs in November.
Nick