Like everyone else has said, word of mouth and time. I moved about 3 years ago and had a hard time getting started again. One thing that helped me alot is I do have a fulltime programming job, so my bosses found a good share of my first freelance gigs around here.
The only other thing I can say is do your best work for everyone, cut your prices, kill, and steel to get your first few. As long as you do good work, it will start coming to you. I havn't had to look for side work in about a year now, it all comes to me, which goes right back to the word of mouth thing.
Best of luck! Sorry I don't have some special solution to help you...