I just posted a similar story here:
https://bitcointalk.org/index.php?topic=178026.msg1869843#msg1869843I don't wanna trigger the scam alarms just yet but I transfered 37.12532000 coins out of Bitfloor a few hours ago. They are shown as withdrawn in my Bitfloor account but the funds have never arrived. I have sent an email to Bitfloor with details and I am awaiting response.
This is a crying shame because Bitfloor was my favourite exchange until now.
I'll post back with an update.