I'd also recommend posting things on sites like Forrst. That's how I found my co-founder. I posted a rough outline of what I wanted to accomplish and asked for those interested to send me an email for more information. Ultimately, I had maybe 5-6 say they were interested with one sticking around (perfectly fine). Leverage community sites. It's definitely worth your time.
Shameless self promotion.<p>But <a href="http://www.weekendhacker.net" rel="nofollow">http://www.weekendhacker.net</a> is also a place for people to meet co-founders.<p>Currently there are approx 6000 designers and developers, 70 projects posted and all got help so far.