Yo can make them yourself fairly easily with some of AC Ryan's sata power connectors.
http://www.kustompcs.co.uk/acatalog/info_1950.html
here is a list of suppliers in the UK
http://www.acryan.com/index.php?opti...=222&Itemid=49
http://www.kustompcs.co.uk/acatalog/info_1950.html
here is a list of suppliers in the UK
http://www.acryan.com/index.php?opti...=222&Itemid=49