I came across a nice tutorial to get the same behavior as under windows (Open System Monitor) when you hit Ctrl+Alt+Del.
Just use the following commands in a Terminal:
[quote]
gconftool-2 -t str –set /apps/metacity/global_keybindings/run_command_9 “Delete”
gconftool-2 -t str –set /apps/metacity/keybinding_commands/command_9 “gnome-system-monitor”
[/quote]
and..
If you want to play around a bit with the Project Looking Glass from Sun you only need the Java Web Starter:
javaws http://download.java.net/lg3d/test/lg3d.jnlp
It’s not terrific, but it’s nice to take a look at it