I can confirm insanity is the way forward, I feel fitter now, than I have felt in ages, no need to go to any gym, buy weights, go for a run in the rain.
You can get insanity in 3 ways the offical way, eBay, or a torrent website.
However you do it I would suggest trying the torrent for 2 weeks as you will lose a lot of money any other way, but stick to the calendar which you can find online too!
I an now 2 weeks in and I can't wait to dig deeper tonight, because I lllluvit