Nearing 30, time to get it together

Hello MFPers! I joined MFP this week due to the suggestion of some co-workers who participated with me a Biggest Loser event at our company. I have been using another website to track my eating and exercise. I am not sure of the policy of mentioning other sites like this so I won't state the name, but I can say that MFP excels in terms of UI and performance compared to this other website, and I am a CONVERT after using it for only a few days. The community aspect is also a bonus, as I've already found a couple of folks of likemind and philosophy here.

A little about me: I will be turning 30 in less than 2 months. Almost 10 years ago, I lost over 50 pounds but in past few years, about half has slowly returned. I have stayed active but not in control of my food intake. I am feeling very confident that I can get back to where I was and even further.

I am a mountain biker, a part-time bike commuter, software engineer working on my M.S. (graduating in May), and married (no kids). Looking forward to meeting more folks on MFP, both those who are on their weight loss journey like I am right now, and those who have hit their goals and are maintaining - because I know from experience that will be my biggest challenge.