Looks like Marisa 737 to me. It was my dream dress but out of budget. I know the design has been around for a few years, but it's a classic, so hopefully they still make it.
I got it from Pearl's Place for a pretty large discount (I think it was about $600 off of retail). I absolutely loved it. I've seen it worn with a sash, as well. It photographs beautifully, too (well of course I am biased). That was one of the things that I was most excited about after seeing it in other people's wedding photos.