I love that yellow dress - so pretty! (and great price)! As for the black dress debate, as it was mentioned before, I don't think they would be hot as long as it's a lighter fabric like chiffon, not satin or anything too heavy. You can also 'beach' it up a lot by adding colorful accessories! Black dresses with tropical, vibrant bouquets and/or heels looks classy, yet beachy bottom line, go for what YOU want to do - after all, it's your day! I am still trying to find my BM dresses - I want short, chiffon, and coral....found a great one @ J. Crew, but it's a bit pricier...