Have a great time! We love WDW but we have just as many wonderful memories at DL. It is a good thing you are going with a WDW vet. WDW can be very overwhelming.
Our favorites: Hoop De Doo Review, Rockin' Roller Coaster, Expedition Everest, Blizzard Beach, EPCOT - World Showcase, Great Moments with Lincoln and the American Pavilion.