Visitors enter The Ernest Hemingway Home & Museum in Key West, Fla. Even though the recession has pushed home prices down, there's still an acute shortage of affordable housing in this resort town. Rob O'Neal/AP/Florida Keys News Bureau hide caption

itoggle caption Rob O'Neal/AP/Florida Keys News Bureau

Florida Gov. Charlie Crist speaks to students and teachers April 23 during a visit to the McFatter Technical Center in Davie, Fla. Crist is expected to announce Thursday whether he'll abandon his bid for the Republican nomination for the U.S. Senate and instead run as an independent. Lynne Sladky/AP hide caption

itoggle caption Lynne Sladky/AP

Florida Gov. Charlie Crist, a Republican, has told advisers he will run for Senate as an independent, setting up a three-way race that polls indicate would be hotly contested. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images