I stayed at Star Island in Feb. It is a nice resort. You are about 10 minutes to WDW. My DH does all the driving but I remember taking a right out of SI and then a left at the first light. Then you just drive down that road till you hit the entrance to WDW on the left. At least, that is how I remember it. Sorry I don't have any street names etc. but I'm sure someone more familiar with 192 can tell you.It was in a good location with a lot of restaurants etc. right outside the resort. Universal is about 20 minutes, I believe.
There is a Super Wallmart a few miles from the resort open 24 hours. We checked in at midnight and drove right over there for groceries.
Jenn