For special occasion you have to be the best, you have to smell like the best,  act like the best & most important dress like the best. There are lots of sites to buy dresses online but i personally think that Faya8 is best. http://www.faya8.com/ has verity of collection of celebrity dresses , special occasion dresses and much more. And believed me  Faya8 is best check it yourself you will not regret.