Hello. I am running OSX 10.6.7.
I want to remote control Apple desktops on my network using the OSX built-in VNC option along with free VNC software.

My setup works fine, but I need a way to lock the screen or disconnect the keyboard when I am controlling the desktop. Apple Remote Desktop package does this but I don't need all the other features.

Is there way to lockout a screen and keyboard when I VNC into a machine, or do I need to purchase a software package?

Can I ssh into the desktop and launch a desktop like in Linux?