You guys are absolutely correct, and I apologize for not mentioning that fact. I have a lot of things going on in my life right now, and it didn't even occur to me. Thank you for calling me out on that.
I bought the laptop here, and I bought the pinmod 1.6 proc here as well (brentpresley). I pinmodded it right after I bought it (~9 months ago), and it's been going strong ever since.
I used this machine exclusively for playing World of Warcraft and it runs flawlessly. Never had an issue with the mod. As far as the warranty is concerned, I still have the original 1.7GHz proccessor that it came with, and will include that with the sale. If the buyer prefers, I can also re-install the 1.7 and include the pin mod processor with the sale. Either way is fine with me.
Again, I apologize for not including that info in my original post. I'm not trying to hide anything, it was merely an oversight.