First,

to 3FC!
Second, it sounds like you are going to count calories, so here is a suggestion. Open an account at Fitday.com. It's free. You will be able to start a food and activities journal. You just imput everything you put into your mouth each day as well as whatever types of exercise and other activity that you do. They will make a graph showing you how many calories you are using compared to how many you are eating. Also, you can set weight goals and they graph that too. On the weight goal section for example, if you weigh 250 today and would like to weigh 240 by Dec.25, 2010 they will tell you exactly how many calories per day you would need to eat to be able to accomplish that goal. One thing to remember though, you do want to make realistic goals so that you don't get discouraged

And finally, this is an awesome site! You will find inspiration, motivation, encouragement, advice AND friendship here.
Hugs and support on your weight loss journey
Judy