We drove through Atlanta on our way from Kansas...this was a tip I had gotten and it was great. I do not have our trip still, but I used mapquest and it was perfect.
For those driving south to WDW via the Florida Turnpike, you might be interested in Walt Disney World's Western Way, which allows you to shorten your drive and bypass the busy Interstate 4. Directions: As you drive south on I-75, take the Florida Turnpike, and you'll eventually approach a collection of several overpasses and exits. Look for and take 429 West Toll Road (Tampa) to exit the Turnpike. You'll find yourself on a quiet four-lane toll road and in approximately 14 miles, you'll take the Walt Disney World exit. This is Disney's Western Way and in just a few miles, you'll soon enter the WDW Resort area to the west of the Coronado Springs Resort onto Buena Vista Drive. Turning left will take you directly toward Downtown Disney and the rest of the WDW Resort. -