Petrolhead: 997 Turbo Cabriolet video
Petrolhead always makes excellent road test videos (except for the language barrier), and this one is no exception:
http://www.petrolhead.nl/2007/08/video_porsche_911_turbo_cabrio.php
http://www.petrolhead.nl/2007/08/video_porsche_911_turbo_cabrio.php