There are no cheap hotels in keys.i was there last april and everything was 175 and up per night.But the weather was great and u will love it.The reef was disappointing,they basicly take u to the dead one.Well i hope there is a better one,i didnt see it!!But you must check out the butterfly exsibit.And be sure to take everything u will need,because nothing cheap.Water camera where 20 dollars each.lighters 4 bucks,tan lotion.be sure to take a good camera and alot of water cameras if u plan on going to the reef.u must put some thought in to this or u will spend alot.Between me and my girlfriend we dropped 4 grand there in one week,but we dived everday,parsailed,jet skis,party supply and junk we bought.But it was really worth it we both had a ball.take as many tours as u can afford.they were the best money we spent.wish i was going with you..Thay have every kind of boat u can think of to take tours on,like old sail boat,pt 109 like jfk was on,catmaran.its awesome.But take more money then u where planning,if not u will be sorry..there is that much stuff u will want to do..