I love my Mac Book and OSX is a dream to use. Out of the box I was able to download photos from my Canon EOS 400D camera, edit, store and share via email, facebook, create a DVD and print from the excellent iPhoto application.
I do agree that the screen resolution issue is a minor annoyance but not enough to put me off.
The only other issue I have is that Safari doesn't work with a small minority of websites, oddly enough it is usually drop down lists that don't work. Fortunately Firefox does.
Microsoft Office 2008 is excellent and far better than the Windows version in my opinion.