There are some pics of Sandestin here:

http://photosflorida.com/images/dennis/

Are you staying in one of the towers on the beach?

We stayed at Sandestin in October of last year, right after Ivan and it was wonderful. There is a lot to do, even if you can't do the beaches. My favorite activity was to lay out on the patio and listen to the water, though.

If you go to their website and click on Virtual Tour, you can see the marina cam to see the weather there. The beach cam hasn't worked since Ivan went through. Check it out to ease your fears that everything will be fine. Also, while at their website, check out all there is to do in Baytowne Wharf. It really is a neat place.