Ideas on where to get a nice formal wedding dress for my friends wedding?

i tried macys.com already and some others, but cant find a nice one for my friends wedding. Im in my lower 20′s for reference. Im looking for a dress that is tight and that goes around my knee area. Thanks! =)

jessicamcclintock .com

they have the CUTEST dresses!
and they’re prices are extremely reasonable!

Taeyang – Wedding Dress (English Version)