[halloweenbaby2]

With a two week trip don't try and do everything. The first time we went we only did the Disney Parks and even 2wks really wasn't enough as there was still things we missed doing. We also decided not to do Universal on our first trip as our daughter wouldn't be tall enough to get on a lot of the rides. We did it the next time though and really enjoy it.
The guide book is good advice, I'd also recommend reading trip reports off here - you will pick loads of tips up and get a feel for what you want to do.
Build in some rest time so that you don't burn out - we go to a water park on rest days.
Good luck and keep asking questions