You may have gotten water into the circuitry of the keyboard, but that's its own replacable unit and has a tray (with the elsewhere-mentioned water holes) to protect the interior of the laptop. Particularly for intermediate models it may be worth picking up a replacement keyboard and dropping it in - not so sure if it's an old T60 or the like.
Yeah I'm comparing the cost of replacing the keyboard and the wifi card versus just donating it and getting a new laptop that doesn't have the Nvidia Optimus and some other features I'm not fond of (and a less power-intensive processor).
The keyboard and the wifi card together would only be like $60 though, which is really nice.
