There is no end to my "lucid dreaming"-loving, I had to tip in with some more on this thread.
If my point was unclear before about low-conscious lucidity and high-conscious lucidity, allow me to quote from AstralSociety(
Articles On Astral Projection, Spiritual Discussion and Information "The basic definition of lucid dreaming requires nothing more than becoming aware that you are dreaming. However, the quality of lucidity can vary greatly. When lucidity is at a high level, you are aware that everything experienced in the dream is occurring in your mind, that there is no real danger, and that you are asleep in bed and will awaken shortly. With low-level lucidity you may be aware to a certain extent that you are dreaming, perhaps enough to fly or alter what you are doing, but not enough to realize that the people are dream representations, or that you can suffer no physical damage, or that you are actually in bed."
That should explain it in more detail.
To help becoming more lucid within a dream I highly recommend the "Spin around" technique (also described at AstralSociety). Basically the technique is what it says. When lucid - spin around in your dream and you might find yourself lucid and/or have a longer dream duration. Good thing about this is that this might be done even in a low-conscious lucidity too if you have focused on this technique enough before going to bed that you will remember it when you go "lucid".
For just general information about lucid dreaming you can see most of their articles (but they have a forum as well) here:
Articles On Astral Projection, Spiritual Discussion and Information
Good luck,
TUC