If you have the time and dedication to do it, I would highly rec doing P 90 X. I bought the program of cds and manuals ($150) and started the program exactly 4 weeks ago. I have always lifted weights, and when I started I was around 212 pounds on my 6 feet tall frame. I wanted to get more lean, ripped, and have better cardio endurance. So I started it. This is NOT easy. I have had one day off in 4 weeks. Every day you do a CD of different things. One day pull ups/weights/chin ups. Next day. pure cardio. Next day yoga (you would be amazed how much you sweat doing their yoga), next day core work etc etc...add in 2-3 days a week of ab work with all that. And this is not stuff where you do an exercise and take a break. This is hard core marine training type stuff. You will sweat and work your ass off. And it makes you eat really well too. Comes with a full diet program. I just finished my Phase 1, then a week of core, yoga, and kenpo, and am now about to start phase 2 tomorrow for a month, which judging from the results photographs I have seen is where your biggest gains happen.
So far I have lost 7 pounds, have put on more muscle, but am SO much leaner. It really does work. Warning though, the first week you do this, you will feel like a truck ran over you or you have the flu or something. Like I said, its brutal.