Best fluid pump?

Hey, I'm going to be changing the manual transmission fluid in my '01 Mustang GT, and am trying to find a decent pump to put the new fluid in. I'd like one that I could use for other uses as well, and one that will last a long time, but not break the bank. I have NO idea what the good ones are. Never shopped for one before. Can a decent one be had for under $50? Any ideas would be great.

Thanks.