Alright mate, as I stated on another post, scientific studies suggest that low GI foods before endurance training provide greater performance overall. Therefore cereal can be good depending on what it is, things like conflakes though do tend to be quite sugary. Personally I have oats/oatmeal and all bran with some milk as part of my breakfast, but when running those kind of distances a greater calorie intake would be required than that alone. Maybe some wholemeal bread aswell and fruit would work nicely. Good luck fellow brummie!