There is a website called OldCity.com. It features information on lodging, attractions, and tours. The old jail is not to be missed. A Bed and Breakfast would be a good choice as many are haunted. Be sure to check out the Fort and the old military hospital for haunted sites. There are both haunted walking tours and trolley tours. (Ghost Train). There is also Potter's Wax Museum and Ripley's Believe it or Not Museum. The Lighthouse is cool too. I enjoy the Lightner Museum as well. Harry's restaurant has a supposed haunted ladies room upstairs. They have great food, too. I love going down there and spending a day or evening. If you don't want a B & B, there is a Hilton right on the water too.
Check out Hilton's website for pictures and info.