Has anyone here ever bought the insanity work out DVD's? I see the commercial on TV every night, and it looks like a great workout. if the testimonials are true. The workout returns great results. my question is has anyone here actually tried it? I am really trying to lose some weight before the summer comes, and i thought that Insanity would be a great way to do that. Can anyone give me a review of Insanity? Or recommend a better workout DVD?