For me, it was a quick decision made during the recession because I believed that doing a postgraduate course (in my case, a certificate in information management) would give me an edge over other arts graduates.
My first degree was in biology (arts), and I simply couldn't find jobs which lasted for more than two to three months in my field after the recession started! Argh, nightmare. Hopefully this will help and of course I keep hearing about how the recession will improve as of 2010 (which is when I graduate - yay!) x