You should be able to get work as a freelancer but you will have to put in a huge amount of time to get your name out there. While you are here on this site look around and consider expanding your skills to include networking and wireless. Many employers are looking at people with a diverse skill set because new hires are having to do more than they ever had to in the past. Wireless skills are in high demand and will be in the future.
Check with Hospitals, state and national government agencies. There is alot of "stimulus" money to be spent and you might be able to land work where the money flows.