That article linked above has some decent arguments. Although, I disagree with the amount of muscle growth in pounds.
I started last May 07 on a diet that helped me drop 30lbs of fat. I basically limited my caloric intake and cut out as much fat as possible. I did a fair amount of exercise for 2 months. Then in July 07 I was about 187LBS. I began a very aggressive weight training regime. Right now about 3 months from when I started I'm 197LBs first thing in the morning. So that's 10 lbs in 3 months. Every part of my body has gotten larger, the only part that continues to get smaller is my waist. Before my diet & Weight training... I had a big beer gut. Now, I've got a six pack. I'm getting leaner than I've ever been in my life. I maintain a healthy nutritious diet and supplement with 3 protein shakes a day. I also use a pre-workout supplement and take extra glutamine and multi vitamins. My goal over the next few years is to be around 225LB @ 5'10 of all lean muscle. I was about 225 of fat body, so I know my body can get to 225lb... I don't care how long it takes honestly...