For more info on specific veggies, including how to choose and prepare them, recipes, and nutritional info, check out the Veggie of the Week/Month Threads.
There's a wealth of great info on veggies and fruit at the Fruit and Veggies Matter site. If you follow this link, you'll find a calculator that helps you figure out how many servings of each you need (remember to follow the SBD guidelines first, though).