If you a degree already, you don't necessarily have to go for four years for another degree, you will have to take the courses for your major and a small amount of additional requirements versus a first degree.

If I could afford to go back to school for 4 years, I wouldn't be worried about finding a job right now. Besides, I hear entry level people are hit the worst right now. I better be spending half my time in college networking if I want a job. But.. Why not do that for my current field at that point?