Keyboard short-cut for Restart and Shutdown?

Since recent keyboards and Mac OS X doesnt have keyboard short-cuts for Shutdown and Restart, is it possible to create new ones for these functions?

Also, why doesnt Mac OS X have these anymore (such as when it had the keyboard with that button you hit to bring up dialog box to shutdown, restart, etc).. that's what I'm looking for...

As for the reason I want this.. sometimes my display goes blank and I can't see anything and hence since you cant see the screen to mouse over to restart, etc... if I could hit a keyboard combo to bring up the restart dialog box and I then hit Enter, it would execute that action...