This is what I was able to come up with for you: I know, I am nuts.

I actually ENJOY wading through all of this stuff!
Package with Poly Lagoon view 2 adults, 2 kids, base 7 day MYW tickets and MYW dining plus = $ 4870.14
Package with Poly Lagoon view 2 adults, 2 kids, base 7 day MYW with hopper option and MYW dining plus = $4976.64
Annual Pass= $399 + 6.5% tax = $424.93
1 7 day MYW w/ no options for adult and 2 7 day MYW tickets w/ no options for kids= $519.00
or 1 seven day MYW w/.hopper for adult and 2 seven day MYW w/ hoppers for kids= $595
Room only Lagoon view, 2 adult 2 kids= 3473.26 minus 30% discount would be $2431.28
So, to have entire package w/ 7 day hoppers, lagoon view, and dining package will cost you $4976.64
Same as above w/o the hopper option= $4870.14
If you add up your AP at $424.93, seven day MYW base ticket for 1 adult and 2 kids at $519.00 and your room only price at $2431.28* (discount may be more or less at time of booking-- this was based on a 30% discount) your total will be not including the Dining Package= $3375.21 (you will be paying for all of your own meals this way.)
The same as above, but adding the hopper option would be= $3451.21 also not including any meals.
This should help you to decide... the meal plan you would have would include 2 sit down meals a day and a snack. You will also get some goodies, too. I believe the Magical Express, which offers hassle free transportation to and from the Orlando International Airport, the magical part is that that you won't have to claim your own luggage... it is delivered straight to your resort room. (I believe that there are certain airlines this applies, to, so I will try to find out which and let you know.) One luggage tag for each person in your party.
As someone above posted... most people end up sending more on food without the dining option than if they have it. Just make your PS fairly soon after the 90 day mark, with the 50th Celebration just beginning! Especially if you are interested in character meals, or California Grill!
Whatever you decide, have a great time!