Ugh, I hate the blinkered viewpoint you get on this forum. I love Macs, but I believe it is a fact that Apple have serious quality problems with their notebooks. Let's look at the list of defects that have been widely reported, and that I have seen on every single recent notebook revision.
1.67GHz PowerBook (Rev E I believe): Horizontal line issue on screen of all machines.
2GHz MacBook Pro (Rev A): Whine from motherboard, overheating, battery swelling, display flicker at low brightness settings. MagSafe power cables fraying and breaking. Noisy right fans.
1.83GHz MacBook: Top case discoloring, extreme overheating leading to widespread random shutdowns and even case fracturing. MagSafe power cables fraying and breaking. Noisy "moo-like" fan.
2.33GHz MacBook Pro (Rev B): Grainy displays, Apple used an extremely cheap display instead of a premium one.
2.4GHz MacBook Pro (Rev C): Cheap displays used again. Yellow tint at bottom of screen is widespread problem. Overheating seems to be a problem on these too. And again, flicker at low brightness settings returns on some machines.
In short, Apple's notebook releases since 2005 or earlier have generally suffered widespread problems due to abysmal quality control, cheap components and design flaws. Now, before someone replies saying "well mine is perfect!!!!!" please note that I am saying these issues are extremely widespread, but not on every single machine. It is possible to get the odd machine that doesn't have flaws. But you only have to look around these forums, Apple's own forums, and generally around the Web to see that the issues I have stated have indeed affected a massive number of Apple's notebook customers.
Please, I think Apple make superb software and DESIGN amazing machines. However, let's be honest, their quality control currently just plain sucks.