Wedding Wednesday- dresses

So over the past few months I've been researching wedding dresses that would fit with my beach wedding. Obviously I need something that's casual, but still elegant. I have been amazed at how many stores that I shop at regularly, have started carrying wedding dresses. The one's I've seen from White House Black Market, JCrew, and BCBG would be perfect for my little beach wedding.

BCBG

White House Black Market

White House Black Market

White House Black Market

I haven't actually gone to try on any dresses yet so I have no clue how dresses from these stores actually present themselves in person. I'm hoping to start the search for the perfect dress in the next few weeks. If I ever have a free weekend. So what do ya'll think? Would you buy a dress from one of these stores? If you have heard anything good or bad about buying from JCrew, White House Black Market, or BCBG let me know!