IT Company Valuation

I know there are a lot of variables to this question, but I am looking for some valuation guidelines related to the possible sale / acquisition of my small, but profitable IT Consulting Business.

Has anyone been through this recently? I have a small consulting services business with 2 employees, approximately 45 clients and have averaged $325,000 in revenue for the last 6 years.

Thanks in advance for any feedback or suggestions.

-B