all the kennels at WDW will kept your pet overnight - for on site guest - it is $9 per night, for other guests it is $11 per night.
You know only have to walk your pet twice - I still do it more often - they will feed it (they use to charge for the food but they don't seem to anymore) - but I like to feed mind - then I can tell if he is eating or not -
I have a cat and YES - I take him for walks - one of the things he really like to explore new surrounding.
if you animals like to walk or is a big dog - then I would suggest either FW or Epcot - but have lots of room for the animal to run....
I didn't like Studios and I have heard that the AK is the same way - very little area to walk them - surrounding by cars and people....
the MK has one at the Ticket/Transportation Center - it would probably be fine for dogs - but the bus stop is next door and my cats get upset about the buses - you can walk around the place or across the street.
FW is also building a new bus stop closer to the kennel - so we might be at Epcot for our future trips....
too many people are still getting lost and late for their hoop-de reservations - so FW is trying to bring the bus stop closer - I hope this cause FW guest to complaint - because it will be further for them to go.....
if you don't want to walk your dog - but would be happy just to board them here is a list - most of these places close at 5:00pm (normal working hours) and Spicey really loves his night walk - so they won't work for me
http://www.abka.org/
WDW is at Lake Buena Vista - but Kissimmee and Orlando are close by.