M.D.
M.,
I haven't been here yet, however, one of the neighbor kids said this is a fun place to go, Amazing Jake's, in Plano.
http://www.amazingjakes.com/plano/
I know they have a place like this in San Antonio where my kids had lots of fun. Chuck E Cheese is for younger kids, according to my kids. The Dallas zoo also has packages for birthdays. They have this one for spending the night there, too expensive for 30 kids, but I thought about it for when family visit from out of state.
Good luck,