http://www.firewallleaktester.com/tests.php
(Scroll to the bottom and click view results)
You might want to look here - updated 11th March - Glad i use Look'n'stop.
---------- Post added at 21:52 ---------- Previous post was at 21:37 ----------
Jesus - the top ranked one Jetico (which i'd never heard off) is FREEWARE!
http://www.jetico.com/
Anyone up for giving this a bash?