I've done a lot of cardio work the past year and went from 74 to 67kg. I feel like I am decent enough shape now to start lifting weights seriously. Anyone have links to an intense, total body workout routine lasting 30 minutes or so? Any tips on making the most effective use of my time on weights? I have always been a cardio junkie (love that endorphin kick after 40 minutes of running), so I am a newbie to the weight room.