That's a good list as far as it goes. It would be unrealistic to publish a fully comprehensive list of shortcuts, but notably missing were some of my favorites:
And, two that are limited to Windows 7:
These last 2 are really useful on widescreen monitors when you're having to switch between 2 windows, and are working in both.
It may also be useful to point out that it's not necessary to use the utmost finesse, thereby releasing both or all 3 keys at exactly the same time. In the case of Ctrl+Alt+Delete, for example, press and hold down the Ctrl and Alt keys, press and release the Delete key, then release the other 2.