I have the classic quandary of wanting to take everything I need, and yet not wanting to take everything I own. At least, I assume its a classic quandary.
I have a minivan with a pop-up and a 5yo, 3yo, 16month old. I'm bringing a double umbrella stroller (I have to bring that since its how I convinced dh to buy yet another stroller
But then someone mentioned bikes. My camper has a bike rack, so it's not a big deal really. But I hadn't planned to bring them. I'm not getting a golf cart, though, so maybe I ought to bring the bikes. And if I bring the bikes, maybe I should bring the bike trailer that totes to kids. I can bring the kids bikes but they aren't really old enough to be riding as recreation. So- bikes? bike trailer?
Refridgerator? My camper doesn't have one built in, but I bought a little cube to take with me. But maybe I'd be better served by a 5-day cooler and some dry ice. I have to take the cooler anyway. But I was planning to transfer stuff to the fridge upon arrival. We'll have food for cooking in the crock pot and also lots of milk. Should I take the fridge?
Microwave, crock pot, coffee maker, kitchen kettle. Am I over packing or is this reasonable?
I might add that we'll be there 7 nights, and this is our first real outing in our camper.
I have a minivan with a pop-up and a 5yo, 3yo, 16month old. I'm bringing a double umbrella stroller (I have to bring that since its how I convinced dh to buy yet another stroller

But then someone mentioned bikes. My camper has a bike rack, so it's not a big deal really. But I hadn't planned to bring them. I'm not getting a golf cart, though, so maybe I ought to bring the bikes. And if I bring the bikes, maybe I should bring the bike trailer that totes to kids. I can bring the kids bikes but they aren't really old enough to be riding as recreation. So- bikes? bike trailer?
Refridgerator? My camper doesn't have one built in, but I bought a little cube to take with me. But maybe I'd be better served by a 5-day cooler and some dry ice. I have to take the cooler anyway. But I was planning to transfer stuff to the fridge upon arrival. We'll have food for cooking in the crock pot and also lots of milk. Should I take the fridge?
Microwave, crock pot, coffee maker, kitchen kettle. Am I over packing or is this reasonable?
I might add that we'll be there 7 nights, and this is our first real outing in our camper.
. There is a ice machine at the comfort stations. Bring the bikes it gives you freedom, you can even bike to the lodge. The more times you camp the more you know what you need. Other than the crock pot we bring everything you mentioned plus a golf cart. I also over pack but I figure if you have the room why knot. Hope this helps.

Keep in mind that it's always hardest the first time! You'll find yourself making a list while you're there of things that you don't want to forget the next time! Just try to keep it as simple as you can! You're there to enjoy yourself at WDW! Disney is not going anywhere, so if you don't do it all the first time, there's always next year! And, every year it will get easier, as the kids get older. 
ENJOY!