I picked up a book from the library last week: Mayo Clinic Healthy Weight for EveryBody
It's very good, keeping focus on balance of diet, exercise, motivation, realisitic goals, etc. It includes a 12 week eating plan, and says you should lose 12-24 lbs. by following the plan, which is within the general guidelines most recommended by the experts.
Pre-made food plans are difficult for me to follow because we have severe food allergies in our family and there are certain foods that just don't enter our home. I find it too much work to figure out appropriate substitutes for a pre-made plan. So I'm striving for moderation, while reducing my sweets intake.
I don't need to lose a lot of weight, 25 lbs. or so, but I do need to strengthen both my muscles and my heart. Exercise is my biggest challenge. I'm so glad for this group to help keep me on track and motivated. Thank you everyone!