Jan, you can book meals in the parks through WDW, see their website.
If you are planning to do a dining option with priority seating for Fantasmic book NOW!!!!
We tried to book at Mama Melrose's before we went and they were booked uo every night we tried, admittedly it was Easter but even so I think you need to book well in advance.
What about Hollywood and Vine at MGM. This might suit the kids better.
We have Victoria and Alberts at The Grand Floridian on our list of places to eat but that will be when there are just the 2 of us!!!![msnwink]