Jess—
It sounds like you don't have much direction or a real plan on getting into "scene work." If you mean working crime scenes as a CSI I really don't think a masters in psychology is going to help you much.
I suggest you look at the following page: How to Become a Crime Scene Investigator. It should give you an idea of what you need to do to become a CSI or Forensic Scientist.
There are over 500 jobs listed in the employment opportunity page of the Crime Scene Investigator Network. Look through the job listings to see what the different agencies require in education. At the same time you can see what the different agencies pay.
My advice is to decide where you want to work, find out what they require in education, and then get that level of education.
—Steve