Here is the same tray (from my earlier post in this same thread) of nine plants on 18Dec07. Most of the flowers have been damaged because they grew up into the lights, before I realized it and could move them where they had more headroom. Fortunately if I either pollinate these for seed or just trim them off, there are many more buds coming along for another crop of blooms.
You can also see that they are in strong competition for the limited amount of space for their leaves.
When you compare the plants above with a photo of the same clone in the following photo, you can see that my cultivation technique has improved somewhat.