okay, i never thought this day would come, since i have always been a pc fan but recently i have been more and more impressed by os x, and since i am currently pissed of @ my centrino, i am looking to buy a powerbook... I am thinking of getting the 15", 1.33ghz with combo drive for $1799(with educational discount ) I have couple questions... first, how warm do the palm rests get? This is the reason why i am gettign rid of my current centrino, the palm rests run too hot for me(especially in this summer heat), i feel like my entire body is sweating when i touch those palm rests.... second, i have a 60 gig 7200prm hard drive from my current laptop, can the powerbook's hard drive be replaced with that without voding my warrenty? third... has there been any doom 3 benchmarks released for macs yet? edit: oho yeah, how fast is the reponse time for the lcd?