Our DD was 21 months when we made our first trip last October. She absolutely loved all the rides in FantasyLand--with the exception of Snow White, which we'd heard was a bit frightening and didn't ride. Toon Town was also a big hit because of the boat and the play area. She loved the parades and the fireworks. She rode Spaceship Earth and did everything in the Land without complaint. TON and Illuminations blew her away. We bought the CD, and everytime it's played she talks about how much fun WDW was. Don't forget about the fountains in MK and Epcot. Our DD probably could have spent the entire vacation playing the water. She loved the AK, especially Festival of the Lion King and the playground. By the time you head back, they'll have Dinorama (is that what it's called) open, and I'd bet that area will be a hit, too. We hadn't scheduled much time for MGM Studios, but ended up going back there on 3 different days. They'll have the Playhouse Disney show going for your trip, so your son might enjoy that. Our DD loved Beauty and the Beast and MuppetVision 3D, along with the soon to be closed Bear in the Big Blue House.
Don't miss out on the character meals. It's better to make the PS before going so you're guaranteed a table. Then, if you find that your son isn't thrilled with the characters, you can always cancel your requests. We did Chef Mickey's about 45 minutes after checking in to our hotel, and now we'll make this our tradition. Our DD loved the napkin dance! We did quite a few other character meals, and she loved every second of it. Sometimes she wasn't quite sure what to think, but the expression on her face when she saw a character heading to our table was worth the entire cost of the trip.
Above all, though, take your cues from your son. We returned to the hotels every day for a nap and downtime. It made all the difference in the world.
You'll be surprised at how much there is for the little ones to enjoy! I agree that you shouldn't listen if anyone tells you that your son is too young. Our DD watches the vacation video at least once a week and is constantly asking when we get to go back. We'll be there for 2 weeks in November-December 2002, so maybe we'll see you there! Enjoy your planning! It's good to know that DH and I aren't the only ones already in this stage.
