Research the average salary of a person with your qualifications in the position you are applying for. This will help you recognize a good job offer or negotiate for a better one.
Web sites like Monster.com and Salary.com let you search for salary ranges for certain jobs. Be sure to consider how much experience and education you bring to the job.
Most employers expect you to negotiate your salary. If you can cite your research, you'll keep the conversation professional and make it easier for you and your new employer.