Read from the link above about why us women should lift weights.
We all know that any exercise is better than no exercise. Do yourself a favor and just do something! Ok, so you've started where pretty much everyone starts.....the cardio machines. But now that you've got some training under your belt, and you have probably shed some weight, you are going to want to start doing something that actually morphs you into that super fit, super hot body you're after - it's time to bring out the iron! If you want strong defined arms, a great butt and a hot pair of legs, cardio alone won't get you there. You need to lift to change the shape of your body. But be prepared to work HARD. The reason these ladies look as good as they do is because they train harder than you.
Lifting weights and still not changing? Check your diet! It's true, if you lift weights consistently, you can pretty much eat whatever you want (at least for me that is the case), but if you are really serious about making some significant changes to your body composition, diet has to tighten up. A lot.
Girls that lift are HOT. Plain and simple. But you knew this already, didn't you ;)