How do I help a friend overcome a computer game addiction?

A good buddy of mine is addicted to World of Warcraft, an online computer game that takes place in this fantasy realm. It consumes way too much of his time and no one can seem to get him to kick the habit, not even his wife!

Any ideas out there or similar experiences?

Unplug his modem/router/ethernet cord/etc. , smack him upside the head, and tell him that you’re both going to go cruise for chicks at the rollerdisco. If that doesn’t work, hire a better player to pwn the shit out of him, and make him quit. If that doesn’t work, uninstall the game when he’s not there, and burn his CD keys. If that doesn’t work, let him be and realize that WoW>You.