cmd-line Tools for Ejecting Usb Devices and managing Drive Letters / Mount points

Hi!
I just found a page with nice cmdline tools for ejecting (RemoveDrive), changing driveletter (ReMount) and deleting mountoints (DelMountPoint).
I'm evaltuating them at the moment but it looks like something i've been looking for some time (cmd-line and fast!).

http://www.uwe-sieber.de/usbstick_e.html

The page with the downloads is in german only, but the tools themself are english and extremely easy to use:
http://www.uwe-sieber.de/usbstick.html

Torpedro