PasswordSafe, now in a PortableApps format. Need testers.
Grab it here: http://www.jeffstoner.com/index.php?categoryid=11
I opted to use the 2.16 version of PasswordSafe due to some of the problems I've heard about in the 3.x branch.
Please, please, please use *copies* of existing password databases. Do not test with your regular password database(s). Since PasswordSafe stores the location of databases in the registry, you should move/rename your existing databases so it does not touch them.