Hello, Teresa!
Wow! What a great group you have assembled for your first stay at
Disney's Saratoga Springs Resort & Spa!
SS is one of our Disney Vacation Club home resorts, and I think that your request for a villa in the Congress Park area is a fantastic one! (It's my favorite location there!) You'll have excellent walking access to Downtown Disney's dining and shopping offerings, and it's an easy resort bus ride to the main pool, lobby and dining locations on property.
One of our favorite features of this property is when we can enjoy Movies Under the Stars while swimming and relaxing poolside at High Rock Spring Pool. The kids can watch a favorite Disney movie while IN the pool, and the grownups (and the baby) can snuggle up on lounge chairs, relax and watch the film as well. It's a great way to spend the night!
Be sure to check out Community Hall, too, which is tucked just around the corner from High Rock Spring Pool. There are activities and games which your 4-year-old will love, and it's a great place to spend some time if a little rain falls during your vacation. DVD rentals are available there, too (which are free for DVC Members!)
For the adults, be sure to check out The Spa at Disney's Saratoga Springs Resort. For a full menu of services and pricing, go to relaxedyet.com, hover over "Spa Locations" and click "The Saratoga Springs Spa." This is a truly lovely spa, and you'll be sure to find something on the menu which you'd love to try!
Have a wonderful stay! Be sure to send more questions as you think of them; I'd love to help!