Just to let you know, aerobics is better than nothing, but try to combine aerobic cardio into your weight-lifting routine. A very good trick is to combine the two simultaneously. Go to your gym at a time when it isn't very crowded, and hit the cardio machines at 5-10 minute intervals between circuit lifts. Very good way to consolidate time and energy. Do not be afraid to eat when you are doing this either. Starving yourself gets you a messed up metobolic rate, and a lack of energy. Just remember, moderation is key! Good luck!!!
I am my own Keeper