Strapless Sheath Wedding Dress

I am looking for a strapless sheath dress appropriate for my wedding in Mexico! I need size 4-6 and here is a list of designers I love: Kirstie Kelly, Justina McCaffrey, Carolina Herrera, Amy Kuschel, Amy Michaelson, Alviria Valenta & Jenny Lee. Please help!
Posted by Monique; updated 10/01/03