I would look one up in the phone book. Just make sure they're certified and insured. A dedicated circuit is the easiest thing an electrician will ever be asked to do. Seriously, it's impossible to not do a good job.
Scott,...old thread, but I'm in the same boat currently. I'm talking to a couple local electricians but I'm not convinced any of them truly get what we as audiophiles are trying to accomplish. Did you ever find a good service?