spyderman
i went today (at 2:30 pm-3 pm)
they were close...
i dont know if they still open (or will open) after the refco crash...
if you want some prop you should look north (west palm-Boca raton) here in miami you wont find a lot of good prop firms.
anyway you can go to DaytradeYa (tradestreamglobal/Penson clearing retail firm, 400 buck a month desk fee with briefingtrader.com)
or just PM bob Bright (they have a very nice office near Refco Trading service) and ask him about refco and the miami beach bright office.
good luck.