I got my MacBook today...
what can I say? it's a beatiful machine. I love the design, the ergonomics and proporions. I love OS X. surprisingly, getting used to all new keyboard shortcuts was the hardest part because I was more or less familiar with Unix system from before. everything is simply beautiful in OS X and to be completely honest, I was a bit reluctant to to back to a windows machine to do some work
there are plenty of apps installed already and even after using my new MacBook for over 5 hours I only had to install Skype and Adium on it (it's a shame iChat doesn't support ICQ and MSN). the irony: the fist time I started up Microsoft Office 2004 demo, it chrashed "unexpectedly"
the keyboard so far has worked perfectly. the screen seems all right to me and I didn't even calibrate it. there is no audible buzz, all I can hear is the hard drive if I get very close to the back of the notebook. and as far as I can see, there are no dead pixels. so far so good.
my only complaint would be Apple's lousy shipping times, it would make me much happier if I received that notebook a few days before