Damn I installed Ubuntu and the only complaint I had was no alt-ctrl-del for a task manager in Ubuntu.
To bind your system monitor to pop up when you use ctrl+al+del use the following commands in xterm/gnome-terminal:
remove the spaces between these "<" ">"
gconftool-2 -t str --set /apps/metacity/global_keybindings/run_command_9 "< Control >< Alt >Delete"
gconftool-2 -t str --set /apps/metacity/keybinding_commands/command_9 "gnome-system-monitor"