Hush
CAGiversary!
http://www.pricegrabber.com/user_sales_getprod.php?masterid=17049352&lot_id=2912958
It seems to be the most commonly used headset for the PS3 according to this thread:
http://boardsus.playstation.com/playstation/board/message?board.id=ps3&thread.id=898874