I have this slip from Davids Bridal for sale in a size 2:
http://www.davidsbridal.com/Product_Fit-and-Flare-Slip-550?cm_mmc=SHOPPINGMER-_-%20Lingerie-_-Fit%20and%20Flare%20Slip%20Style%20550-_-550&channel=SHOPPINGMER&mr:referralID=16dec67c-de92-11e1-9e8b-001b2166c62dI am selling the slip for $30 plus shipping OBO.
My dress had a low cut back, so my mom folded the top of the slip down and sewed it. I can leave it as-is if you are in the same situation, or I will take the stitching out if you'd like. We didn't alter it in any permanent way.
My wedding is on Sept. 2, 2012, so it will be available after that!