If you like Font Awesome, you're going to love Black Tie!
             

fa-check-circle-o · Unicode: f05d · Created: v1.0 · Categories: Web Application Icons

After you get up and running, you can place Font Awesome icons just about anywhere with the <i> tag:

fa-check-circle-o
<i class="fa fa-check-circle-o"></i> fa-check-circle-o

Looking for more? Check out the examples.