Rich McIver has provided a guide of sorts for companies out there to help "attract, retain and utilize rock star programmers" for their business:

There are plenty of programmers out there, but rock star programmers? They are few and far between. Learn how to locate these gems and keep them happy with the resources below.

The article is broken up into five different sections:

• Job Sites
• Locating Quality Programmers
• Screening
• Care and Feeding of Programmers
• Other Considerations

There's tons of links under each with some good advice not only for those doing the interview but also for the interviewee trying to land the job.