Should I get a master's degree?

[Daniel]

They do, but I have taken some CS grad courses already -- years ago in the swamp lands of Florida (Go Gators!)

My B.S. was in Psychology with a minor in computer something-or-other.

(I learned more about psychology reading Psychology Today blog posts than reading undergraduate textbooks.)

[Daniel]

Ten Reasons You Don't Need An MBA -- Forbes.com

...In a lot of industries, companies want to hire managers who have specialized knowledge and experience in their particular industry, not necessarily those who have general educations, like the MBA curriculum. Make sure you understand what hiring managers in your field are looking for. In many industries, an MBA won’t be useful to your career advancement.