Forgot to mention, if you do decide to go the I-4 route, there is a quicker way onto it from the Greeneway (417). At the first junction with the Greeneway, instead of taking it South to Kissimmee, etc, go North on the Greeneway and you hit I-4 after a couple of miles, where you need to go West to get back down to the tourist areas. This saves the 6-mile hike along Lake Mary Boulevard, which is full of traffic lights and other junctions. But (and this is a big BUT!), if you take 417 North, you will still need 50c in change for the auto-toll AS SOON AS you turn onto the slip-road. However, I will underline the possibility that, from Mon-Fri, if you hit the downtown stretch of I-4 anywhere between 4 and 6pm, you can encounter some serious traffic, and (unfortunately) I-4 is gettign worse all the time. It is LONG overdue for a wideneing scheme, but that is still several years away, at least.