CNMooner, FYI, the Central Florida Greenway is a toll road (like every major road out of the airport). I found a post I wrote about getting to that Super Target back in May:
"If you go there from the airport, take the 417 South (manned toll at Boggy Creek/airport ramp = $1) to exit 11, Orange Blossom Trail (SR 441). The toll to exit at 11 is, indeed, 50 cents. There's no toll to re-enter, but you will have to pay a toll at a manned toll booth to exit for Disney. Turn right onto Orange Blossom Trail and travel about a quarter mile. The Super Target is on the right. When you leave Super Target, it's easier to exit from the side driveway on Town Center Drive. There's a light at that intersection. If you try to exit from the OBT driveway, you'll have to make a U-turn at that light anyway. Go under the 417 overpass to turn left and enter 417 South again. (Don't do what I did and turn too soon- it costs $1.25 to turn around on the 417 North! ) Take the International Drive/SR 536 exit and pay the manned booth $1. The road you're actually on is World Center Drive, which turns into Epcot Center Dr once you pass through those pretty purple gates!
The tolls are a lot of hassle, but that area is just riddled with toll roads. I just try to remember that $2.50 is the cost of two small bottles of water in the theme parks!"
Oh, and the Orange Blossom Trail exit is unmanned, I think, so keep a couple of quarters handy!