The need for a proper breakfast while training (or any other time) cannot be under estimated.  I never used to eat in the am.  Now I cannot imagine making the day without it.  I literally start getting paraniod when my meals are interupted.

Many studies have confirmed that you have more energy and eat less throughout the day if you eat a balanced breakfast.  You will also raise your metobolism.

I have went from 180 pounds to 150 pounds in a little over a year.  I'm much healthier and my weight suites my sports.

I eat either Oatmeal and a wheat English muffin with honey or Eggs and a wheat English muffin.  For me it depends on my carb needs.  I always eat a Bannana around 10.