Right, but why does any of that mean you need a prepackaged plan.
You're best bet in my opinion is developing a balanced diet that you enjoy and can consistently adhere to over time. Obviously this isn't going to happen overnight. It's about experimentation and modification.
All diet plans work off the same basic principles... some better than others.
Some of these principles are things like caloric control, appropriate amounts of macronutrients, etc.
You can start with the basics.
You need to expend more energy than you consume. Calories are energy. I'd read through the stickies to determine your maintenance intake and cut from there.
Once you know your caloric goal, fill it with the right foods. I like to start with protein... shooting for roughly 1 gram per pound of lean body mass. If you don't know your lean body mass.... simply take a guess at your body fat percentage and multiply it by your weight. Subtract this number form your weight and that's your lean body mass. Getting close enough at this stage in the game is what matters.
From there, get adequate fats, primarily from the good stuff like fish, fish oils, flax, olive oil, nuts, avocados, peanut butter, etc. This should be approximately 20-30% of your diet.
The rest of the calories you need can be filled from carbs and/or some more fats.
1 gram protein = 4 calories
1 gram carbs = 4 calories
1 gram of fat = 9 calories
Things like or are your friends.
I'd hate to see you rush out and spend money on some fancy diet plan when it really isn't necessary. Work on building something that is completely tailored to you and you're more likely to succeed. Plus, the more you understand, the better you can tweak your plan to meet your needs... you're not locked into the rigidity of a prepackaged plan.
Hell, depending on how you were eating before, just making better foods choices relative to you old ways might be enough to make a difference. Junk food tends to be more calorically dense than healthy foods. So you end up getting full on less calories when you make better food choices.