I'd just like to say that this thread's been a big help. I had a 97 and 99 GTP, and the clearly stated differences has me more comfortable with my newer 05. I still have a lot to learn. I'll probably be going over the car's suspension, advised engine maintenance (reduce KR), and appearance before tackling the PCM stuff.
Really, you guys saved me a boatload of cash over the winter just with this little bit of info. Thanks a bunch.