CSS-Tricks is a WordPress site hosted on Media Temple. In fact, I think it’s a poster child for a WordPress site. Meaning, it uses a slew of WordPress features that rather nicely support everything I want to do on this site. A blog! Forums! A Store! User management! Several unique taxonomies!
Media Temple has WordPress-specific hosting packages, and many other hosting packages ranging up through private virtual servers, dedicated servers, and even managed Amazon Web Services.
They know what they are doing over there, provide excellent support, and I recommend them for web hosting.