Use any font you want, and be sure your user will see it.
It used to be that we had to stick to “web-safe” fonts to be sure our site visitors saw the correct font. But now we can store our fonts on the web and serve them to users no matter what they have on their machines. I’ll show how to use the @font-face technique for embedding web fonts in your themes, give some good free/cheap font resources, and talk about licensing. I’ll also cover online repositories like Google fonts and typekit.