@bebert : Transit time from Clermont was 10 minute tops and the kids love seeing all of the crazy tourist stores that are shaped like giant mermaids, lighthouses, Orange World, etc. Traffic wasn't bad since we went mid-January.
A couple minutes to get in the parking fee gate at WDW and then parking was the only "inconvenience" but if the kids were tired, they had trams to take you to your parking area - It felt faster getting in the car and going than waiting for buses and connections.
We did 1 park per day and parked there or the Transportation Center.
The fact we had our own hot tub/pool at night we could relax in after the kids were in bed was the best part of the trip too - for the cost we couldn't beat the amenities.
Here is the house we rented. If you or your wife has any questions, please message me. The owners live in New Jersey and I dealt with her directly (Qian) - we love this house and plan to rent it again in a year or two.
http://www.vacationhomerentals.com/...on-rental-villa-proID-57306.html#emailafriend