>>4
I'm not sure you need to be in such a hurry to switch; with few exceptions, undergraduate degrees don't have that much to do with ultimate careers. If you like your courses, and are doing well, a language degree is no less useful than most other undergrad degrees. A bachelor's degree in business, for example, is almost useless in the real world, even though it sounds like a career-oriented degree.

I'd get your language degree, then look for a job with a company that does business in the countries where those languages are spoken. Most entry-level gigs don't expect you to know how to do the job yet, and your abilities may prove useful.

If you're a U.S. citizen, you should also consider taking the Foreign Service Exam--you might wind up a junior-level diplomat in China or Japan before you know it. They train really well, and by the time you leave, you'll have a range of other skills in addition to languages that you can draw upon for future work. If you're not a Yank, look into civil service opportunities in your home country.