It seems as though most have gone with florescent lighting for the "light", but what Horseman has said is interesting - they can cause fading. Now I realise that it probably took years and years and years for that to happen, but it is interesting none the less.
Most down lights are designed to be mounted in the ceiling of a room, that is true and those that aren't seem to be ridiculously expensive. What I imagined is this ... a single down light flush mounted in an 8' ceiling of a room gives out X amount of lateral light, cone shaped right?
Therefore, the lower that light is hung, the smaller the diameter of the bottom of that cone becomes - which equates to less lateral light dispersion.
So if one down light (8' above the ground) produces a 6' diameter circle of light on the ground then the same light hung 4' off of the ground should produce a 3' circle of light right? Give or take. So what I would really like to know is what diameter circle a down light will produce when hung from 8' or 7' 6". Now I know that will depend on what type of globe is used, LED, incandescent etc.
With that being said though, looks as if fluorescent lights might be the quickest and easiest to set up initially.
In so far as photography goes, I agree with all the things that have been said; however I suppose the lighting issue is more to do with the video side of things than the stills, and more importantly the engineers view of the layout. Keep in mind that I only use a very cheap little micro camera for those engineer view video's, one that isn't at all sophisticated where changes can be made.