I had a friend with a similar situation. She ended up having to get a new computer. Unfortunately computers and fluids don't coexist very well. If you've given it time to dry out (and it sounds like you did), and it still doesn't work, it's likely bitten the dust. You could take it to a repair shop for another opinion, but they'd likely charge you a good slug of change just to check it. Where I am I think the minimum charge is $70, but some places are $100 just to look and diagnose. I hope you had your data backed up. If not, you MIGHT be able to take the hard drive out, put it in a $20 enclosure, and plug it into another computer. Sorry I don't have better news.
Some water got into my Dell Lattitude E6430 laptop, while I fell asleep and left it on. I woke up and saw that it was off, it didn't come on when i pressed the power button. I then noticed the charger had no light even when it was not plugged into the laptop. The light came on after a while in the laptop charger but as soon as I plugged it in the charger light turn off immediately. None of the indicator lights in the laptop came on during all this. I left it in an AC room for 3 days to dry out without the bottom case on and without the memory, cd-drive and hard drive. After re-assembly, I then tried the charger again and also a different charger but it was the same result. Can anyone advise me on what to do to get it working?