Getting started with OpenBSD 4.1

One of the few operating systems I've never tried is OpenBSD this quick guide got me inspired to do so. Let's hope it does the same to you.
Quote from Software in review:

f you're a software enthusiast who has never used OpenBSD before, you might enjoy installing it by yourself and figuring it out as you go. If, however, you're looking for a more practical approach to using OpenBSD 4.1 on a desktop or server machine, here's a quick guide to get you started in this spectacular operating system.