Best Degree to Pair w/ a B.Sc. in Computer Science?

VeryCleverHandle asks: "I have held a Bachelor's degree in Computer Science for about two years now, and I want to further my education, and increase my marketability. I am wondering what kind of degree makes a good pair for my existing one. At first, I thought of a Master's, but in my searches for a job, I've rarely (read: never) seen a Masters degree required. I am also researching what kind of degrees others, who have obtained their Bachelor's, received to help complement their education. So I ask you, Slashdot: Which degree(s) do YOU think will go well with a Computer Science Bachelors?"