Ask HN: How do you hire someone.

OK, I am finally going to get another member of staff to help me. I read a lot about "How not to hire someone", how programming trivia questions are not a good idea. What ways do you guys have of finding someone good?

(The job will likely be intermediate level all round developer, with a good bit of database / Django work. In the past I found it very frustrating to work with a college who proudly proclaimed not to know OOP, had no interest in learning. So I guess willingness to learn new tech is one thing on my list of wants).