Hiya officmgr
The holiday wake-up calls can be the hardest! It sounds like you have a really good understanding of what you want to accomplish and the challenges you will face, please come here often for help - the folks here are really good at that!
It also sounds like you've had some base-line tests done, which I think is great. Are you working with a doctor? My doc is helping me address my health and weight management issues. She has made some fabulous reccomendations and I'd be happy to share (in generic form) with you what she's suggested for me.
I count my calories everyday and keep a food journal. I use a general 10-week food and exercise journal published by Calorie King. I have a specific calorie target which is based on my metabolic rate and my weight loss goals. There are calculators out their that can help you estimate your BMR (basal metabolic rate) or RMR (resting metabolic rate). This can help you figure out how many calories you should eat a day on average to achieve weight loss. I try to reduce my food intake by no more than 500 calories a day below my actual calorie requirement. This will allow me to lose about a pound a week. Anymore that I want to lose I try to accomplish through exercise - the extra calories I burn speed up my losses.
My doc also has me wear a really simple pedometer and try to get in 10,000 steps a day. Exercise seems to be going well for you which is awesome - I really struggled with that. One thing I'd mention is a quote from my calorie counter - "While aerobic fitness requires only 3-4 sessions weekls,
weight control is a daily event which requires daily exercise" Even if its just 10-15 minutes walking, it will help.
To keep myself from getting hungry I drink plenty of water throughout the day. My journal even has little glasses I can check off to make sure I get 8 cups a day or more. Which reminds me (heads off to the water cooler).
Thats pretty much what I'm doing. After having tried too many diets in the past I'm trying to keep it simple. Good luck, and keep up the great work.