I'm apply for the mathematical finance now...
About your questions:
u may find jobs in IB or risk management divisions in many organizations, but the competition there is really tough.
Most mathematical finance curriculum is compact and usually to be one year program, so you will quite busy both working and studting.
The programs are hard to apply, but a established program can almost assure you a decent internship.
B.T.W. How do you prepare ur SAS Base Certificate? Can u recommend some useful websites or books or whatever u think will helpful
Hey, I have posted my response earlier, but I can't find it now. Weird! Briefly speaking. I am taking a free SAS training class at college. They offer big discount books for us to prepare for the exam. Bye.