Lexar JumpDrive Secure II
Unlike most of its competitors, this good-looking USB 2.0 flash drive is designed to keep your data private. It does this with preloaded Secure II Dashboard software, which lets you create password-protected "encrypted vaults" on the drive itself or on the host computer, Windows or Mac. The "file shredder" feature insures that deleted data stays deleted. From $20 (256MB) to $100 (2GB).