If you want to go to Miami try to get into one of the Baptist Hospitals there, or if you're into peds try for Miami Childrens. If you're looking for a huge level 1 teaching hospital, then try for the University of Miami/Jackson. I wouldn't recommend any of the other hospitals in Dade County---not Mt. Sinai on Miami Beach, certainly not any of the Tenet hospitals, and the only HCA hospitals that's halfway decent are the ones in Kendall and Coral Gables.
If you decide on the Fort Lauderdale area, neither the North nor South Broward District Hospitals are using travelers now, but this could change when their busy season starts at the end of October. Except for the District hospitals and Holy Cross in Fort Lauderdale, I would not recommend ANY of the others. Pretty much all the others are owned either by Tenet or HCA and none of them are great places to work. The Cleveland Clinic hospital in Weston seperated from Tenet some time ago, and I've heard its not so bad now. However, they do require that you wear all-white all the time, and if you're a smoker you cannot work there (even if you only smoke while you're off work). These things may not be issues for you, but just letting you know.
As far as the Boca/West Palm Beach area hospitals go. I would not recommend ANY of them---at all!
Now thats for travel assignments. If you're planning on moving permanently to the southeast Florida area. Do more research first. I've lived here most of my life and I'm telling you that this place isn't all sunshine, rainbows, and lollipops the way some people make it seem. It is EXPENSIVE to live here, and even though home prices have come down a bit they are still high. On top of that the property insurance and taxes are also very high. Crime is also on the increase all over the Tri-county area--even in areas where you hardly used to hear about criminal activity at all. Robberies, assault, and murder are on the rise, and the criminals are becoming more brazen. During the past year there have been more than just a few incidents of them getting into shootouts with the police, and just a couple weeks ago another cop was gunned down on the job in Fort Lauderdale. But, what can I tell you, we have a mayor here who is more concerned about running gay people out of town than he is about the crime situation!
As a staff nurse here you will be making mid to high 20s/hr. You can make more doing agency work, but there's not much of that available except during the busy winter season. The hospitals may offer big bonuses to go on staff, but the short of it is that whether you plan to buy or rent a home, it will be a challenge to keep up with the cost of living here unless you regularly do overtime. I feel that areas like Tampa and Jacksonville are generally better places to go to than south Florida, but that's just my opinion. The southwest coast is nice if you prefer a more laid back and less congested environment but that area is also very expensive.