K.S.
We love Port Orleans, but the room is going to be tight (just a warning!). If you have a car, you can always make a run to a supermarket or the superwalmart and pick up a bunch of snacks and breakfast items (might even be worth taking a bus or a cab). We usually get bagels and cream cheese and snack bars and cereal and have breakfast in the room to save time and get to the parks as early as possible. I would also buy water and carry it into the parks in a small bag - the water in the parks is very expensive and Florida can be very hot (even the last week of April).
Since you're staying on site you'll get the extra magic hours - I would advise to skip the morning hour (unless you go to the park with the hour and then hop to a different park) because that park tends to get SUPER crowded once it opens to the public. The evening hours are better - they are usually crowded for the first hour or so but then the crowds thin and make it worth it.
If you want to eat at a sit down restaurant, definitely make your reservations now! And try to see things you think you might not like - Disney is full of surprises - my husband and I always rode the Pooh ride even before kids because it is so cute and whimsical!
Have fun!!!