I never knew Target had wedding dresses online, but it does! They are designed by Isaac Mizrahi and if you are looking for a fairly simple dress they are amazing. I got my dress for $90, but it is now on sale for 50% OFF! Who knows how long that sale will last so I suggest getting it soon! Its a great dress for small or destination weddings, but you could easily add accessories to add more to it. I didn't need any alterations on it - it fits perfectly. Even if you aren't totally sure it will work for you, its only $45 right now and you can always return it. You can't afford NOT to try it!
http://www.target.com/Isaac-Mizrahi-Target-Strapless-Sheath/dp/B000M1CL04/qid=1233711710/ref=br_1_1/187-6746576-3824301?ie=UTF8&node=14074381&frombrowse=1&rh=tgt_2%3AWhite&page=1