Hiii...
if you are not interested in msc zoology particularly why dont you go for msc in biotechnology,microbiology,marine biology etc etc..they have a better prospect of giving you a job after you complete the msc..
As for job related courses you can do an MBA..u can also register yourself in those coaching organisations that help you prepare for bank recruitment exams,SSC..
You can do a short six months course in clinical research and get your diploma....this helps in getting job in pharmacetical companies..you can do computer courses..they range from 6 months long to almost 2 year long...they help in bank jobs too..
Best of luck for your future...