Since version 2.7 RC 1, upgrading to the next version of WordPress has been this easy:
You click “Upgrade Automatically” and wait about 5 seconds.
Not entirely off topic: a friend of mine asked me yesterday about the best way to put up a new website. She had thought about using Yahoo Site Builder or some such. Yahoo and its like are great at building free, quick, and ugly websites. If you’re going to publish on the internets, why not just opt for something just as easy and that has hundreds, if not thousands of possible totally free themes to choose from? I say, go with WordPress.
I used to code sites by hand – that’s a chump’s game. Just install WordPress and call it a day.