Best exercise dvd for toning to prevent loose skin

I've been reading about how to try and prevent loose skin when loosing a large amount of weight (7 stone) and it's often said about doing strength and toning exercises with weights etc.

I don't really know what to do so thought a dvd would be a good start so I wanted to ask if anyone could recommend any good toning dvd's that actually get results. Thank you xxx

i'm not sure about dvds although i do like the claire richards one from steps.
i have a book rosemary conleys inch loss plan - you measure yourself before you start and then she shows you 28 days of toning exercises and then you measure yourself at the end .
my favourite at the moment is just dance 3 on the wii, it's absolutely brill, it's like a workout in itself and it's fun at the same time,
hopefully someone else will be able to tell you loads of dvds