Hi there, best of luck to you. We went when DD was 9 months, 23 months, and 2 more times before she turned 3. (for a total of 4 trips before she was 3 years old, with another to Vero Beach after she was 3.) She is a full WDW expert now and can tell you anything about the place. She even remembers things about her 2nd trip when she was under 2 years old. (not the 9 month old one.) Our next trip March 2005 we will have a 7 month old too (who should be born ANY DAY NOW !!! :hammer: I hope :sohappy: )
1st look at some of the link threads at the bottom of the page, they have some good advice.
Bring your own stroller. One you are comfortable with, the folds down small (for the bus) and has a canapy, basket and reclines for naps (we like our combi travel savy DX, about 60 at
www.strollers4less.com) but there are other cheap ones out there that work great too. You will need a rain cover for the stoller too (don't go with out one trust me). They are around 10$ in a pinch a poncho will do, but the cover is better and venalated. Nothing worse then a wet stroller.) Keep it on when you go into atractions if there is the slightest chance of rain. Keep yourself and baby well hydrated use lots of sun screen.
2nd go back to the room when you feel you need it, and the baby does. (even though they can nap almost anywhere at that age, a good real mid day nap does wonders.) As you will always do, make sure to go acourding to baby's needs and scdule and you should be fine. Consider a baby carrier too when they are not in the stroller. Bring your own swim dipears, they can be pricey at WDW. Baby care centers sell dipers and food, but bring your own or stop at the store, it will save you money. If mom is still nursing, keep it up for the trip, it is much easier then dealing with bottles and formula. If you do formula, be sure to use bottled water, the water at WDW is nasty! Bring a soft cooler to the park with water in it and other snacks, hang it off the stoller.
While the trip will be very differnt with a baby, you will still have a great time and Disney can be a great place for familes. The baby care centers in each park are good resources, they have chaning centers in evey bathroom in the park and nice places to sit and have a rest.
Don't pay any attention to people who don't have kids that ask why you are taking a young one with you. While I love my friends and family at WDWMagic, this board is well known for non parents questioning why parents bring young children, so ingore those posts (if they happen.) Ignore it from friends and families too. Parents need vacations also and WDW is a great place for one.
Another great resource for familes is
www.disboards.com look under the family forem. Many, many threads always going on this topic with lots of good advice. Do a search here too, there has been many recently.
Good luck and have a great time and take lots of pictures. With any luck my 2nd child will be here before you get to WDW!