Steve (NO British humor...LOL), and YES, I thought it was the 'fake' David...go check out that square...it IS where they held the "Bonfire of the Vanities" for two successive years after the fall of the Medici, and the next year they burned the priest Savonarola there in retribution. There is a little brass plaque in the middle of the square where the bonfires were built!
Go check out the whole "bonfire of the vanities" thing on the web, it is quite fascinating, especially now you've been there!!! We were there two years ago.