I personally have had some luck with Joel's stackoverflow career postings when it first started out. I'm not sure what it's like anymore.

Also, are you a programmer yourself? If so it's much easier because you can just reach back to classmates and friends.

Otherwise, you probably have a much harder time. There's an entire article here about how it's hard to hire a good programmer if you're not good yourself: http://www.joelonsoftware.com/articles/fog0000000073.html