WOW! So many questions.
I have given myself a workout that I know I can live with for the long term.
I do 6 sets of bench presses (10-15 reps)
then 6 sets of butterflys (with dumbells, 15-20 reps)
then i try to get my heart rate up a little...
I superset 6 sets of skull crushers (20-30 reps), mixed in with 6 sets of preacher curls.
I do this workout on Tues, Thurs, and Sunday.
As for my diet, I try to keep it under 2000 calories a day. A typical day would be:
1 bowl of cereal (usually multi grain cheerios) for breakfast
some pretzels, or animal crackers for lunch
Chicken with a vegetable (I love corn, asaparagus, and mushrooms) for dinner
and some yogurt as a bedtime snack
The key is to stick with it.