I've seen a few posts on CDF regarding using the Sartek 35W HID for video lighting. I was wondering if anyone had used either the Tovatec Meganova or Supernova for video? If so, how would you rate its light output? Or would I be better served getting the Sartek?

I'm making a trip back to Mexico this spring and want to buy a video light specifically for this trip. Since most of the caves I will be visiting there will be very white limestone (as opposed to some of the darker cave walls in NFL) I was thinking I could maybe skimp on lighting by spending less than $600. I imagine the overwhelming majority of the video will be shot in Sac Aktun (Ho-Tul circuit) and Mayan Blue.
The big stal in Chac-mool and Temple of doom are some other areas I want to re-shoot as well.