Is there a limit on the number of lights you can place?
The maximus number of lights you can apply to one object is 8 I believe, that is an OpenGL limit. You can place more but they won't do anything.
At one point there's was util class somewhere that'll sort the lights, picking the closest ones for you (just can't remember the name right now), maybe it's even in CVS by now…
can't remember the name right now