Nikki Casali wrote:
It'd nice to harvest it through some fibreoptic contraption brought
through the roof. I don't think it would have the same heat problems
associated with direct sunlight at the window ledge.

Well, there is at least one such system to provide indoor lighting, but I
don't know if it would be sufficient intensity for growing plants. I'm not
sure of the effeciency of the system. I've seen it most often discussed
for indoor lighting as a way of energy conservation.