Help the environment. "To be an envirnmentalist who happens to eat meat is like being a philanthropist who doesn't happen to give to charity" -- Howard Lyman
Keep a journal. Record each day how you feel on a scale of 1 - 10, and describe any problems or solutions that you encountered that day.
Prevent cancer. The overall cancer death rates are 1/2 to 3/4 the population rates for vegetarians
Think of 3 meals you already enjoy. To get started, look at the vegetarian meals you already enjoy - like vegetable stir fries, pasta primavera, or veggei stew
Try out new foods. Don't just remove meat from your existing diet. Expand your dietary horizon as you become a vegetarian.