Ironically, when I first went to Disney, we stayed at the Wilderness cabins with our 3 and 5 year old. Although, they are lovely, in hindsight I would have been better off at a "typical" Disney resort. The transportation system to the parks was slightly more complicated than a typical resort like POP Century and I wasn't comfortable letting my kids play in the yard (Reason: Cars, Golf carts, kids on bikes, the ground cover and terrain). These cabins go have a full kitchen, so you could save money by preparing your own food, but as my wife points out "ARE YOU CRAZY, I'M NOT GOING ON VACATION AND COOKING ALL WEEK".
Don't get me wrong .. if I need a place for 6 people, this would be on this list, but for a trip with 2 young kids. I would be looking for something like POP Century ... you will find ample places for the kids to play and really, the only time you will get to your room is when they are ready to sleep (Usually after a kid meltdown).
Renting DVC points means making an arrangement with a person or a company that allows you to rent someone elses Disney timeshare points. Case in point ... I need 2 nights of accommodation in Disney, prior to our cruise in March. My wife has always loved Animal Kingdom lodge and we have never stayed there because of the price .... lets just say $390 per night plus taxes would be normal, so 2 nights would exceed $800. This year, I rented points for 2 nights, in a Value Studio, for $282 in total for both nights (26 points at $11 a point). That's a very good rate ...
Now, the down side of this. Renting from someone involves risk ... yes, you could get ripped off. Or for a few more dollars you could rent from a company like dvcrequest, thus minimizing your risk. Downside number 2 ... if there is a free dining offer, you can't get it. Or if there are free days offers, or gift cards, etc etc, you can't either.
Here's what I would suggest. If you are flexible on your timing when you could head to Disney ... i.e. You could head there on Say February 28th, 2013, you are likely to encounter free dining (No guarantee) . I would avoid March break, where prices go up for rooms and flights and discounts/offers disappear if possible. I would look for a free dining offer at the POP Century, so this means basically that you would pay for your room and Disney tickets and that your dining package would be free (this would amount to approx $100 per day in Savings). Yeah I know ... if someone is a teacher ... then this is a no go.
If you must go on March break and there are no "offers" then renting points may be the best option (you can add dining to this process) and you could buy tickets for disney thru undercovertourist.com to save some money.
Also, depending on your kids and how they react to a car drive ... I would consider looking at flights out of the US. This has been a major savings for us. You could expect to save somewhere around $300 per person.
Ted