Hi,
I got my MacBook C2D this past Saturday, from an Apple store. It's a standard Black one, 2Ghz, 120GB hard drive. Anyways, someone earlier mentioned loud fans.... YES mine has the same issue. It idles at a temp of 60 C and has a small amount of fan noise, but, if I do anything that puts moderate load on the cpu, the fan gets pretty noisy (and temperatures hit about 80 C). In fact, I'd say that it is so noisy that it would attract attention in a quiet library, and is noticeable even 15-20 feet away. I also don't know if this is normal or not for MacBooks, and would like to hear other peoples' experiences, as it is loud enough to really bother me.... I have 12 more days to decide whether to return it or not!
Situations so far that kick in the fans loudly are:
* playing a video podcast (1.5mbits/sec encoding rate, pushed cpu to 66%)
* installing XCode
* importing about 50 pictures into iPhoto from my camera
* running CineBench or super_pi
To put load on your CPU, you can open up the command terminal (bash shell) and run these commands (2 of the same command because the C2D has 2 cpus):
yes > /dev/null&
yes > /dev/null&
I can say definitively that this is by far the loudest laptop computer I have ever used. I ran some heavy benchmarks on my Thinkpad T42 sitting right next to my Macbook and the fan was very quiet by comparison, even though the Thinkpad CPU was totally maxxed out. I also have used many other laptops in the past and fan noise has never been this loud.
By the way, I'm blogging about my experiences, you can read my review of the MacBook C2D at topicpoint.com