I'm in this boat as well. I'm going to be a dad in about 7 months, so I want to start getting myself in shape. I put on lots of weight in the last 12 years by eating lots and lots of unhealthy food. Now, I'm 6'0, 297 and don't want to be. I've fought this battle on and off, and I'll do well for a while, lose 20-25 pounds in a span of time, and then something comes along and I get off the right eating track and I'm back to where I started again. Now, it seems that this time is going to be different. My motivation I think is not just to look better, or be healthier just for me or my wife, but for my coming child. My biggest challenge is exercise. I can eat healthy (for a time, at least!) but the exercise is what I struggle with. I want to get up in the morning, while it's still cool, and go for a long walk. That's my hope, now that I'm getting back into the routine of life. So, it's really a matter of eating the right foods and exercise. I know this, but knowing and doing at times are 2 separate issues.