Madhur Jaffrey's World Vegetarian is a great book. Also, if you can find an indian grocer nearby, stock up on spices. The amount of combinations you can make with some dhal, veggies, and spice is almost endless.
http://allrecipes.com/Default.aspx
http://www.opensourcefood.com/
Sorry, I'm in between meetings and don't have time for a full post. Try these sites out. Also, try any cookbook by Deborah Madison or Madhur Jaffrey