Legacy Bank of Florida is offering a 5.55% APY 11-month certificate of deposit. The minimum deposit is $1,000. This special isn't listed at the bank's website. A reader mentioned in the comments that it was advertised in the Florida Sun-Sentinel newspaper yesterday.
Branches are located in Boca Raton, Delray Beach, West Palm Beach and Fort Lauderdale. It's a new bank that was just started in 2006. It's FDIC insured (FDIC Certificate # 58247).
Thanks to the reader who mentioned this special in the comments of the finding deals post.