Degree or no, your big fat salary may largely depend on what the economy is like at the time. Examine your motives, and remember that grad school is a big commitment of time and money. Your best bet is to talk to other grad students in your field and at the schools you're considering. Find out what the school can do for you, intellectually and financially. Check out advice from Virginia Tech's Career Services and Peterson's Grad Channel .
Unemployment is super low.
Get a job now, make some money, have some fun then go back to grad school later. The grass will seem greener when you visit the other side. Yes, I'm going back to grad school. Except it will have to be somewhere warm. There's too much ice on the ground in Boston right now.