I've found a dress I absolutely love on WideDress.com. Their dresses are SO cheap. I started googling for feedback on their site and couldn't find much except for 2 or 3 posts in various places saying the site is a scam and they either don't ship your dress or the dress you get is horrible quality.
If a site was truly a scam I'd expect to find more than a few posts complaining about it. At the same time, I don't necessariliy want to test the waters myself!