Did a quick rendering practice using jamie's workflow exercise, which I'd post hre, but have been having some issues.
Instead, here's my very quick interpretation of jamie's lighting task:
This was all very quick- one layer of very dark blue over the top, lighting holes punched through with 0% hardness brush eraser, then very soft and low opacity colour burn brush for lights.
To produce a good lighting scheme with this technique would still take time- the silhouettes cast by uplights need to be masked. Essentuially, this representation appears to denote 13 very sharply focused and bright spotlights shone from a helicopter...
The real star of the lighting plan is still Mr. Hadley
Oh yeah- just found the original rendered plan: