Come on down.................. I have made the drive through Atlanta several times coming from the East on I-85 and coming south on I-75. If I were to come from the east and found the traffic was heavy on I-85, I would get off on I-285 at spaghetti junction and take it to I-475 and then come to I-75 south of Atlanta. Stay on I-75 until you get to Exit 358 in Florida, This will get you on SR 326 which will bypass Ocala traffic and link up with US-40 east of Ocala. US-40 will take you through the Ocala National Forrest to US-19. US-19 will take you south to Umatilla. The drive from I-75 is pleasant and the traffic is almost non existent ( except during commuter time).