1Password is quite good for the Mac: http://agilewebsolutions.com/products/1Password http://agilewebsolutions.com/products/1Password It integrates well with Fi

1Password is quite good for the Mac: http://agilewebsolutions.com/products/1Password http://agilewebsolutions.com/products/1Password It integrates well with Firefox & Safari, and will sync over wi-fi to an iPhone for an encrypted backup.