I heard about Jillian Michael's on spark people. So I looked her up and the 30 day shred workout that everyone seems to be raving about. Turns out it is a very famous work out at home video which has been very popular in the US. I googled for reviews and almost everyone has seen good results with the videos. So I looked it up on you tube and downloaded the video for level 1.
The 30 day shred