Ubuntu: Keyboard Shortcuts
Keyboard Shortcuts:
System->Preferences->Keyboard Shortcuts
You definitely want the "Windows" key to work. Ubuntu names this key as "Super".

System->Preferences->Keyboard->Layouts->Layout Options



$ gconf-editorIn apps->metacity->keybinding_commands you can make use of any of the empty commands e.g command_1, command_10 and enter the command you want to execute as the value. Then in apps->metacity->global_keybindings enter the key combination for the command e.g run_command_1 To display the keyboard modifier map and keymap table
$ xmodmap -pkeTo get a description of every key press
$ xev

