Macbook Pro has issues after liquid spill – logic board?

I have a 17" Macbook Pro 2.4ghz (last model before recent update). I have had this laptop for about two years now and never had an issue. Recently I spilled vitamin water on the keyboard, but quickly dried it out and when I got home I took every key off and cleaned everything the best I could. Everything was going well until two days ago when my computer completely froze up while on Skype. I was forced to do a force shutdown and when I turned it back on I was presented with a few issues. It was telling me that no airport card was installed, I had no options to change or adjust volume (no volume at all and volume keys won't work), and the left side USB drives won't work but the right will. I plugged in my ethernet wire and can connect to the internet that way. All other functions on the laptop are working properly. I reseated the Aiport Card and checked all connections. I researched and did EVERY POSSIBLE reset offered from PRAM to SMC and a few others. Nothing works so I inserted the apple CD, did a scan and I received the code "4SNS/1/40000000: TWOP". Searching for answers on the net have prooved useless and when I called apple they said it was most likely my logic board. I just want to know if anyone has every had this problem before and if it's just a logic board replacement to fix. I can do all the work myself so I'll save on labor. Either way, I was so frustrated with not having my pro that I ordered the new model last night so there is no rush on this question but an answer would help me a lot when it comes time to fix it. I don't think the airport card and USB drives can both just go out so I'm leaning towards a shorted logic board from the liquid. Any ideas will help so I don't waste close to 1,000 dollars on a new LB. Also, is it possible to only short out a section of the logic board to kill only three functions like this? Thanks a lot for reading and I'm praying for some help here.
BTW, yesterday I ordered a the new 15" unibody Macbook Pro fully loaded so I feel as if I will use this as a learning tool in changing out the logic boards. Now if I can only find a decent deal online under 800 dollars :-X

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