I realize that you want a place close to the front gates. However, I do want to throw a couple of other options out there for you. They are further down on S. Harbor in Garden Grove. You would need to drive into the parks (which isn't so bad since there are 6 of you) or take the ART.
- Anaheim Marriott Suites ($99 with BCAA discount)
- Hampton Inn & Suites Garden Grove (includes free hot breakfast ($101)
Both places have the 2 doubles/queens plus the sofa bed. Also, both places are close to a Target, where you can pick up bottled water and snacks. Also, next door to this Target is a great Dollar Store where you can pick up some great Disney souvenirs (mostly stationary items like Disney themed notebooks, pencil sets, etc.).
We decided to not stay at the Marriott Suites and stayed at the Hampton Inn this summer because of the free hot breakfast included. On weekends, they would have pizza/movie nights. There are cookies to welcome you each evening. Nice touches.
Take a look at Tripadvisor.com for reviews on those places. Have fun planning your trip!