This is a great article, makes me want to get off my bum and do some exercise :) One thing I'd like to know is, for women, yoga and pilates and all that seems to be quite fashionable these days, but they don't tend to be either cardio or weightlifting -- what sort of effect do they have on the body?
Also, as someone else mentioned, don't be afraid of doing weights. The only way to gain weight and thus more muscle is by eating a surplus. So many women shy away from weights because they don't want to get 'bulky', when it's the food that makes you bulky not the training.