I have been using a Nova Pro 100 recently and I love it too :-) Amazing it works as well as it does.
Funny you should write about having cool dreams during periods of light and sound use. I am into dreams and have tried different programs and supplements and most of them have value in one way or another. So basically - I pay attention to my dreams - and think about them - which I think is the main ingredient to remembering dreams more vividly. Actually, I got the light and sound machine just to help me meditate, moreso than to boost dreams. It is really excellent for relaxing and holding me in a meditative state. I also take monoatomic gold before a longer meditation session and ooolala!!! Awesome.
I also noticed that my dreams were much more vivid the night after I use the Nova Pro. Not really sure why. My dreams after light and sound were more vivid, not necessarily what I would consider full blown lucid dreams. At least not yet. I think I will try doing some specific "programming" or affirming during my meditations for becoming lucid that night. See what happens. Keep ya posted!