I think Basic Step/Body Fusion would be great, if she doesn't want to spend much time working out, maybe she could do the "add-ons"..there's a 20 min upperbody section, 20 min lowerbody, and 10 min ab section. All you need are some 3 lb weights and a light resistance band.
I think I'm an intermediate exerciser..I did the 20 min arm section yesterday and it wasn't too difficult, but I felt that I got a good workout, especially in the amount of time.
She could probably do any of Cathe's pure weight workouts, just get her a lighter set of weights. I would get a set that goes from 2 lbs-8 lbs..they sell some at a local sports store here that go up in 1 lb increments. Help her set up a notebook and tell her to make notes whether a weight is too challenging/too easy.
As far as barbells go, maybe get her a 9 lb "Body Bar"..I used to use mine all the time when I was about her age (I'm only 18 now!)
I don't know what other cardio workouts you could have her do besides Basic Step, maybe High Step Circuit (I don't have that one yet so I can't speak on it personally). I know that right now I'm at a level where I can do Basic Step..but another Cathe workout like Step Heat is still a bit too much. I bought some of Cathe's out of print videos hoping to fill the gap a little bit, but I haven't had the opportunity to do them yet.
That's pretty much what I would be using now (if I were at home, I'm dorming)
Sorry to ramble on so much, but I hope that helps you. Best of luck to your daughter!