Although you've prolly seen it, this FAQ helped me alot. I found that writing your dreams down on paper, however fragmented, helps lucid dreaming alot. When I first started out, i wrote down such fragmented lines as "in a cave, with a small gooey portal" and "on a dock". They eventually became several paragraphs when I could remember them better. Keep at it, and if you havent already read that FAQ.
http://www.lucidity.com/LucidDreamingFAQ2.html