My MS was a waste of time and money, it really hasn't paid off for me professtionally. That said it is what brought me to KS, bought me some time before having to join the work force, and I really had a great time doing it, BTW was in a Science Major...
As for ideas, good luck, its like the SAT you can't really study for it. I didn't study at all for mine, no idea what I got, granted that was almost 9 years ago.