Hi, I have 2 GHz Intel Core Duo and as many other users are, I am unhappy with the heat. Otherwise, all working great. i want to sell this and get the Core 2 Duo, but since this is the only reason at this point I wanted to ask how significantly there is a difference in terms of the machine getting hot. My MBP intel core due ranges from 60C-76C even when I am browsing on the Firefox - which i realize experienced my many. would intel core 2 due keep my arms cooler? 
Thanks,
B
Thanks,
B