You go guy! We're pulling for you. Remember: Baby steps. I highly recommend joining a Weight Watchers group or reading Dr. Atkins' books (He has such a personal, understanding tone). I lost a lot of weight on WW, but after a while I become numb, or immune to diets, and I do better with an all or never mentality. I can't have just one half a cup of ice cream at home. Atkins is an "all or nothing" lifestyle, and for some of us, that is very empowering. The best exercise advice I have for you is from WW: Get 20 minutes of activity per day. I recommend walking, because it is free. If the weather is prohibitive, you can get a cheap, plastic "exercise step" and do steps in front of the TV. Twenty minutes is not as scary for some reason as thirty, and when you get healthier you can aim for more. Of course, the recommended amount is 30 minutes a day, but we are talking baby steps here, remember? Start with 10 minutes twice a day if you need to, and if you mess up on something, just start over the next MINUTE!
The great thing about where you are now is that when you really start, the weight will fly off. It is going to be the best high you've ever had in your life. Prayer helps, too!