Lisa - I am doing a half up half down. Thankfully my hair is pretty straight and I'm getting married in February, so I am not too concerned with the humidity making it a frizzy mess. I also think it greatly depends on the dress you choose. I think the ones with sleeves or that go higher up look best with an up-do, versus a strapless or sweetheart that can support the hair being down! (You don't want to cover up that beautiful dress!!)
ChicagoBride - I got a MAGGIE!! She is an amazing designer, and I absolutley love the fit. Personally I like the first one better but where are you getting married? On the beach or at the Gazeebo? I think #1 fits perfectly for Gazeebo and #2 for on the Beach =) They are both beautiful dresses! Great picks!