Where do I begin to plan a trip?

[Brandi1985]

I have 3 kiddos -ages 7,4 and almost 2. We are thinking of taking them to Disney this summer(June possibly) I have no clue where to even start looking for tickets or exactly what all they offer. I googled it but was overwhelmed with all the information! Anyone have any advice on how to plan a budget friendly trip with 3 small children. We live 15 hours away.
Thanks in advance