I have been using calorie king and counting calories religiously lately- I find that if I am in control of what is going in my mouth, then I am a lot more in control in general.
Excercise DVD's are good too- I have the Michelle Bridges ones and her workouts are broken up into 10 min segments, so you can do the warm up and then just do 10 mins, if you find 10 mins 3 times a day then you have done 30 mins of work out. I wear my heart rate monitor when I do my workout and I tend to burn between 200-300 calories in 30 mins of her workouts.
Planning, Planning and Planning- Plan what you are going to eat the night before or in the morning, always have a snack in mind for when you are hungry or busy, so you don't eat the first thing you find, and try and plan in your excercise so you are commited to it.

Good Luck, it can be done- I think the thing to remember with a busy life is to accept that it might take a bit longer to lose weight and be happy with a 200-500gm lose each week, because if you are loosing you aren't gaining.