I'm (nearly) in the same case: I spilt some beer over my phone a few weeks ago. Not much, but I think some of it reached the bottom of the phone, where the usb/charger connects, as my phone was displaying messages such as "Accessory not recognized" (when I wasn't trying to connect anything).
Anyhow I finally managed to take it apart a few days later (I used it meanwhile a little which I shouldn't have), and with a bit of whool cleaned it up and put it back together. The accessory message never appeared again but new problems appeared:
-My touch screen started (and still is) messing up big time
- And the vibrating button, the volume buttons, the lock button and the jack are not working at all.
So here I am facing problems that appeared only after I took the thing apart! so I'm basically wondering if you guys think that I should try taking it apart again (but first I have to wait for the battery to run out -_-) to see if anything is misconnected or if its a part of the phone that I have to replace?! And if so, which part would you think I'd be?
thanks in advance!
 After the battery ran out (the lock/switch off button wasn't working anymore) I disassembled and reassembled and everything now works just fine! So if that can be of any help then good! *woohoo*