I just read this New York Times article, which offers a global view of the impact of meat eating. Now I've known for a long time that meat has a much larger impact on the environment than plants, but this article offers some compelling statistics and offers a general sense about the actual effects of cutting back on meat consumption.
In the last year or so, I've been aiming towards eating a meatless dinner at least twice a week, though since I'm not a huge soy fan, I've found it challenging to not just substitute a meat dish for a cheese-intensive one, and I find that my skin is much nicer when I'm not eating tons of cheese.
I've been looking into getting some vegetarian cookbooks beyond the Moosewood and some old hippie cookbooks my mom had for years. My friend Erica suggested cookbooks by Debra Madison.