yes, and like a few of the other chickies mentioned, I need a good amount of fiber and protein to feel satiated after breakfast.
Typically I have oatmeal with half a scoop of whey gourmet protein powder, a splash of milk and splenda. Then I am good until my snack 2 hours later.
Have you tried giving yourself a cue ?
After your breakfast, make yourself a coffee or sugar free cafe mocha and pop a piece of SF gum. That'll send yourself the signal that there's no snackage for awhile

If you still feel snacky, I would up the protein. Do you like cottage cheese? Its yummy for breakfast.