I am thinking about jury rigging a light system using either halogen, LED, or HID lights and arms. Does anyone have any feelings on which would work better. I've seen a light setup using UK HID pistol grips, but it had a lot of hot spots even with the diffuser, I know halogen aren't as expensive, but I am curious about LED lights...would they be powerful enough to light an area underwater if visibilty and conditions are relative?