I'm new to WordPress to but just had great results incorporating a WordPress blog seamlessly into my existing static website after reading this tutorial.
It's not complete, and it's worth checking all of the functions he uses to check that they're not depreciated (a couple are - no biggie), but if you're fine with HTML and CSS you'll learn enough from this tutorial to get the basics down and get started.
I would disagree slightly that you "don't incorporate" as moshu says - my main theme template is based on the index page of my website, with the relevant WordPress PHP added. My WordPress style sheet is also a near copy of my website style sheet, with a few extra styles for the blog content and sidebar. It's definitely not a quick and easy affair and you'll have to do tons of messing around, but then again I found it nowhere near as complicated as some made out to me at first.